diff --git a/web/documentserver-example/csharp-mvc/Scripts/formats.js b/web/documentserver-example/csharp-mvc/Scripts/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/csharp-mvc/Scripts/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/csharp-mvc/Scripts/jscript.js b/web/documentserver-example/csharp-mvc/Scripts/jscript.js
index 4399c79a..d74be36c 100644
--- a/web/documentserver-example/csharp-mvc/Scripts/jscript.js
+++ b/web/documentserver-example/csharp-mvc/Scripts/jscript.js
@@ -17,6 +17,27 @@
  */
 
 var directUrl;
+var formatManager;
+
+window.onload = function () {
+    fetch("webeditor.ashx?type=formats")
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.Name,
+                        format.Type,
+                        format.Actions,
+                        format.Convert,
+                        format.Mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery != "undefined") {
     jq = jQuery.noConflict();
@@ -103,7 +124,7 @@ if (typeof jQuery != "undefined") {
         var posExt = fileName.lastIndexOf('.');
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (ConverExtList.indexOf(posExt) == -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -184,10 +205,10 @@ if (typeof jQuery != "undefined") {
         jq("#beginView, #beginEmbedded").removeClass("disable");
 
         var fileName = jq("#hiddenFileName").val();
-        var posExt = fileName.lastIndexOf('.');
+        var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (EditedExtList.indexOf(posExt) != -1 || FillExtList.indexOf(posExt) != -1) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/csharp-mvc/Views/Home/Index.aspx b/web/documentserver-example/csharp-mvc/Views/Home/Index.aspx
index 639ab4c9..fdf0ec31 100644
--- a/web/documentserver-example/csharp-mvc/Views/Home/Index.aspx
+++ b/web/documentserver-example/csharp-mvc/Views/Home/Index.aspx
@@ -373,9 +373,6 @@
     <%: Scripts.Render("~/bundles/jquery", "~/bundles/scripts") %>
 
     <script language="javascript" type="text/javascript">
-        var FillExtList = '<%= string.Join(",", DocManagerHelper.FillFormExts.ToArray()) %>';
-        var ConverExtList = '<%= string.Join(",", DocManagerHelper.ConvertExts.ToArray()) %>';
-        var EditedExtList = '<%= string.Join(",", DocManagerHelper.EditedExts.ToArray()) %>';
         var UrlConverter = '<%= Url.Content("~/webeditor.ashx?type=convert") %>';
         var UrlEditor = '<%= Url.Action("editor", "Home") %>';
     </script>
diff --git a/web/documentserver-example/csharp-mvc/WebEditor.ashx.cs b/web/documentserver-example/csharp-mvc/WebEditor.ashx.cs
index 8eaa1897..f3c0bb01 100644
--- a/web/documentserver-example/csharp-mvc/WebEditor.ashx.cs
+++ b/web/documentserver-example/csharp-mvc/WebEditor.ashx.cs
@@ -87,6 +87,9 @@ namespace OnlineEditorsExampleMVC
                 case "reference":
                     Reference(context);
                     break;
+                case "formats":
+                    Formats(context);
+                    break;
             }
         }
 
@@ -974,6 +977,25 @@ namespace OnlineEditorsExampleMVC
             return history;
         }
 
+        // return all the supported formats
+        private static void Formats(HttpContext context)
+        {
+            try
+            {
+                Dictionary<string, object> data = new Dictionary<string, object>
+                {
+                    { "formats", FormatManager.All() }
+                };
+                context.Response.ContentType = "application/json";
+                var jss = new JavaScriptSerializer();
+
+                context.Response.Write(jss.Serialize(data));
+            }
+            catch (Exception e)
+            {
+                context.Response.Write("{ \"error\": \"" + e.Message + "\"}");
+            }
+        }
     }
  
 }
\ No newline at end of file
diff --git a/web/documentserver-example/csharp/Default.aspx b/web/documentserver-example/csharp/Default.aspx
index 4f207cfb..a0f027e2 100644
--- a/web/documentserver-example/csharp/Default.aspx
+++ b/web/documentserver-example/csharp/Default.aspx
@@ -380,12 +380,8 @@
     <script language="javascript" type="text/javascript" src="script/jquery.iframe-transport.js"></script>
     <script language="javascript" type="text/javascript" src="script/jquery.fileupload.js"></script>
     <script language="javascript" type="text/javascript" src="script/jquery.dropdownToggle.js"></script>
+    <script language="javascript" type="text/javascript" src="script/formats.js"></script>
     <script language="javascript" type="text/javascript" src="script/jscript.js"></script>
-    <script language="javascript" type="text/javascript">
-        var FillFormExtList = '<%= string.Join(",", FillFormsExts.ToArray()) %>';
-        var ConverExtList = '<%= string.Join(",", ConvertExts.ToArray()) %>';
-        var EditedExtList = '<%= string.Join(",", EditedExts.ToArray()) %>';
-    </script>
 
 </body>
 </html>
diff --git a/web/documentserver-example/csharp/WebEditor.ashx.cs b/web/documentserver-example/csharp/WebEditor.ashx.cs
index 89880424..f567af51 100644
--- a/web/documentserver-example/csharp/WebEditor.ashx.cs
+++ b/web/documentserver-example/csharp/WebEditor.ashx.cs
@@ -87,6 +87,9 @@ namespace OnlineEditorsExample
                 case "reference":
                     Reference(context);
                     break;
+                case "formats":
+                    Formats(context);
+                    break;
             }
         }
 
@@ -788,5 +791,25 @@ namespace OnlineEditorsExample
                 + userAddress;
             return fileUrl.ToString();
         }
+
+        // return all the supported formats
+        private static void Formats(HttpContext context)
+        {
+            try
+            {
+                Dictionary<string, object> data = new Dictionary<string, object>
+                {
+                    { "formats", FormatManager.All() }
+                };
+                context.Response.ContentType = "application/json";
+                var jss = new JavaScriptSerializer();
+
+                context.Response.Write(jss.Serialize(data));
+            }
+            catch (Exception e)
+            {
+                context.Response.Write("{ \"error\": \"" + e.Message + "\"}");
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/web/documentserver-example/csharp/script/formats.js b/web/documentserver-example/csharp/script/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/csharp/script/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/csharp/script/jscript.js b/web/documentserver-example/csharp/script/jscript.js
index abdcc780..9a8cd0ec 100644
--- a/web/documentserver-example/csharp/script/jscript.js
+++ b/web/documentserver-example/csharp/script/jscript.js
@@ -17,6 +17,27 @@
  */
 
 var directUrl;
+var formatManager;
+
+window.onload = function () {
+    fetch("webeditor.ashx?type=formats")
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.Name,
+                        format.Type,
+                        format.Actions,
+                        format.Convert,
+                        format.Mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery != "undefined") {
     jq = jQuery.noConflict();
@@ -103,7 +124,7 @@ if (typeof jQuery != "undefined") {
         var posExt = fileName.lastIndexOf('.');
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (ConverExtList.indexOf(posExt) == -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -184,10 +205,10 @@ if (typeof jQuery != "undefined") {
         jq("#beginView, #beginEmbedded").removeClass("disable");
 
         var fileName = jq("#hiddenFileName").val();
-        var posExt = fileName.lastIndexOf('.');
+        var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (EditedExtList.indexOf(posExt) != -1 || FillFormExtList.indexOf(posExt) != -1) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/controllers/IndexController.java b/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/controllers/IndexController.java
index 6de1d9d2..dba6bfc1 100755
--- a/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/controllers/IndexController.java
+++ b/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/controllers/IndexController.java
@@ -22,8 +22,10 @@ import com.onlyoffice.integration.documentserver.storage.FileStorageMutator;
 import com.onlyoffice.integration.documentserver.storage.FileStoragePathBuilder;
 import com.onlyoffice.integration.documentserver.util.Misc;
 import com.onlyoffice.integration.documentserver.util.file.FileUtility;
+import com.onlyoffice.integration.documentserver.util.service.FormatService;
 import com.onlyoffice.integration.entities.User;
 import com.onlyoffice.integration.services.UserServices;
+import com.onlyoffice.integration.dto.FormatsList;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Controller;
@@ -33,6 +35,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.http.ResponseEntity;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -61,6 +64,9 @@ public class IndexController {
     @Autowired
     private UserServices userService;
 
+    @Autowired
+    private FormatService formatService;
+
     @Value("${files.docservice.url.site}")
     private String docserviceSite;
 
@@ -136,16 +142,16 @@ public class IndexController {
     @ResponseBody
     public HashMap<String, String> configParameters() {  // get configuration parameters
         HashMap<String, String> configuration = new HashMap<>();
-
-        configuration.put("FillExtList", String.join(",", fileUtility
-                .getFillExts()));  // put a list of the extensions that can be filled to config
-        configuration.put("ConverExtList", String.join(",", fileUtility
-                .getConvertExts()));  // put a list of the extensions that can be converted to config
-        configuration.put("EditedExtList", String.join(",", fileUtility
-                .getEditedExts()));  // put a list of the extensions that can be edited to config
         configuration.put("UrlConverter", urlConverter);
         configuration.put("UrlEditor", urlEditor);
 
         return configuration;
     }
+
+    @GetMapping("/formats")
+    @ResponseBody
+    public ResponseEntity<FormatsList> formats() {  // return all the supported formats
+        FormatsList list = new FormatsList(formatService.getFormats());
+        return ResponseEntity.ok(list);
+    }
 }
diff --git a/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/dto/FormatsList.java b/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/dto/FormatsList.java
new file mode 100644
index 00000000..daa58983
--- /dev/null
+++ b/web/documentserver-example/java-spring/src/main/java/com/onlyoffice/integration/dto/FormatsList.java
@@ -0,0 +1,32 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package com.onlyoffice.integration.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+import com.onlyoffice.integration.documentserver.models.Format;
+import java.util.List;
+
+@Getter
+@Setter
+@AllArgsConstructor
+public class FormatsList {
+    private List<Format> formats;
+}
diff --git a/web/documentserver-example/java-spring/src/main/resources/static/scripts/converter.js b/web/documentserver-example/java-spring/src/main/resources/static/scripts/converter.js
index 6a804a0d..47f86373 100755
--- a/web/documentserver-example/java-spring/src/main/resources/static/scripts/converter.js
+++ b/web/documentserver-example/java-spring/src/main/resources/static/scripts/converter.js
@@ -16,18 +16,12 @@
  *
  */
 
-var ConverExtList;
-var EditedExtList;
 var UrlConverter;
 var UrlEditor;
-var FillExtList;
 
 if (typeof jQuery !== "undefined") {
     jQuery.post('/config',
         function(data) {
-            FillExtList = data.FillExtList.split(',');
-            ConverExtList = data.ConverExtList.split(',');
-            EditedExtList = data.EditedExtList.split(',');
             UrlConverter = data.UrlConverter;
             UrlEditor = data.UrlEditor;
     });
diff --git a/web/documentserver-example/java-spring/src/main/resources/static/scripts/formats.js b/web/documentserver-example/java-spring/src/main/resources/static/scripts/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/java-spring/src/main/resources/static/scripts/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/java-spring/src/main/resources/static/scripts/jscript.js b/web/documentserver-example/java-spring/src/main/resources/static/scripts/jscript.js
index 443b4e85..d95a8f30 100755
--- a/web/documentserver-example/java-spring/src/main/resources/static/scripts/jscript.js
+++ b/web/documentserver-example/java-spring/src/main/resources/static/scripts/jscript.js
@@ -17,6 +17,27 @@
  */
 
 var directUrl;
+var formatManager;
+
+window.onload = function () {
+    fetch('/formats')
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.name,
+                        format.type,
+                        format.actions,
+                        format.convert,
+                        format.mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery !== "undefined") {
     jq = jQuery.noConflict();
@@ -103,7 +124,7 @@ if (typeof jQuery !== "undefined") {
         var posExt = fileName.lastIndexOf(".") + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : "";
 
-        if (ConverExtList.includes(posExt) === -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -186,7 +207,7 @@ if (typeof jQuery !== "undefined") {
         var posExt = fileName.lastIndexOf(".") + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : "";
 
-        if (EditedExtList.includes(posExt) !== -1 || FillExtList.includes(posExt) !== -1) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/java-spring/src/main/resources/templates/index.html b/web/documentserver-example/java-spring/src/main/resources/templates/index.html
index ad908ae5..98c51cfa 100755
--- a/web/documentserver-example/java-spring/src/main/resources/templates/index.html
+++ b/web/documentserver-example/java-spring/src/main/resources/templates/index.html
@@ -357,6 +357,7 @@
     <script type="text/javascript" src="scripts/jquery.iframe-transport.js"></script>
     <script type="text/javascript" src="scripts/jquery.fileupload.js"></script>
     <script type="text/javascript" src="scripts/jquery.dropdownToggle.js"></script>
+    <script type="text/javascript" src="scripts/formats.js"></script>
     <script type="text/javascript" src="scripts/jscript.js"></script>
     <script type="text/javascript" src="scripts/converter.js"></script>
     <script type="text/javascript">
diff --git a/web/documentserver-example/java/src/main/java/controllers/IndexServlet.java b/web/documentserver-example/java/src/main/java/controllers/IndexServlet.java
index 21420b7e..0acddc5a 100755
--- a/web/documentserver-example/java/src/main/java/controllers/IndexServlet.java
+++ b/web/documentserver-example/java/src/main/java/controllers/IndexServlet.java
@@ -29,6 +29,7 @@ import helpers.FileUtility;
 import helpers.ServiceConverter;
 import helpers.TrackManager;
 import helpers.Users;
+import format.FormatManager;
 import org.json.simple.JSONArray;
 import org.json.simple.JSONObject;
 import org.json.simple.parser.JSONParser;
@@ -139,6 +140,9 @@ public class IndexServlet extends HttpServlet {
             case "historydata":
                 historyData(request, response, writer);
                 break;
+            case "formats":
+                formats(request, response, writer);
+                break;
             default:
                 break;
         }
@@ -1046,6 +1050,16 @@ public class IndexServlet extends HttpServlet {
         writer.write("{}");
     }
 
+    private static void formats(final HttpServletRequest request,
+                                final HttpServletResponse response,
+                                final PrintWriter writer) {
+        Map<String, Object> data = new HashMap<String, Object>();
+        data.put("formats", (new FormatManager()).getFormats());
+        response.setContentType("application/json");
+        Gson gson = new Gson();
+        writer.write(gson.toJson(data));
+    }
+
     // process get request
     @Override
     protected void doGet(final HttpServletRequest request,
diff --git a/web/documentserver-example/java/src/main/webapp/index.jsp b/web/documentserver-example/java/src/main/webapp/index.jsp
index c5efb11d..877bce61 100755
--- a/web/documentserver-example/java/src/main/webapp/index.jsp
+++ b/web/documentserver-example/java/src/main/webapp/index.jsp
@@ -381,12 +381,10 @@
         <script type="text/javascript" src="scripts/jquery.iframe-transport.js"></script>
         <script type="text/javascript" src="scripts/jquery.fileupload.js"></script>
         <script type="text/javascript" src="scripts/jquery.dropdownToggle.js"></script>
+        <script type="text/javascript" src="scripts/formats.js"></script>
         <script type="text/javascript" src="scripts/jscript.js"></script>
 
         <script language="javascript" type="text/javascript">
-            var FillExtList = "<%= String.join(",", DocumentManager.getFillExts()) %>".split(",");
-            var ConverExtList = "<%= String.join(",", DocumentManager.getConvertExts()) %>".split(",");
-            var EditedExtList = "<%= String.join(",", DocumentManager.getEditedExts()) %>".split(",");
             var UrlConverter = "IndexServlet?type=convert";
             var UrlEditor = "EditorServlet";
 
diff --git a/web/documentserver-example/java/src/main/webapp/scripts/formats.js b/web/documentserver-example/java/src/main/webapp/scripts/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/java/src/main/webapp/scripts/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/java/src/main/webapp/scripts/jscript.js b/web/documentserver-example/java/src/main/webapp/scripts/jscript.js
index 804d92a8..0a9dce74 100644
--- a/web/documentserver-example/java/src/main/webapp/scripts/jscript.js
+++ b/web/documentserver-example/java/src/main/webapp/scripts/jscript.js
@@ -17,6 +17,27 @@
  */
 
 var directUrl;
+var formatManager;
+
+window.onload = function () {
+    fetch('IndexServlet?type=formats')
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.name,
+                        format.type,
+                        format.actions,
+                        format.convert,
+                        format.mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery !== "undefined") {
     jq = jQuery.noConflict();
@@ -103,7 +124,7 @@ if (typeof jQuery !== "undefined") {
         var posExt = fileName.lastIndexOf(".") + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : "";
 
-        if (!ConverExtList.includes(posExt)) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -186,7 +207,7 @@ if (typeof jQuery !== "undefined") {
         var posExt = fileName.lastIndexOf(".") + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : "";
 
-        if (EditedExtList.includes(posExt) || FillExtList.includes(posExt)) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/nodejs/app.js b/web/documentserver-example/nodejs/app.js
index 49ad6ecb..6d59efac 100755
--- a/web/documentserver-example/nodejs/app.js
+++ b/web/documentserver-example/nodejs/app.js
@@ -93,8 +93,6 @@ app.get('/', (req, res) => { // define a handler for default page
 
     res.render('index', { // render index template with the parameters specified
       preloaderUrl: siteUrl + configServer.get('preloaderUrl'),
-      convertExts: fileUtility.getConvertExtensions(),
-      editedExts: fileUtility.getEditExtensions(),
       fillExts: fileUtility.getFillExtensions(),
       storedFiles: req.DocManager.getStoredFiles(),
       params: req.DocManager.getCustomParams(),
@@ -1201,7 +1199,9 @@ app.post('/historyObj', (req, res) => {
 app.get('/formats', (req, res) => {
   try {
     const formats = fileUtility.getFormats();
-    res.json(formats);
+    res.json({
+      formats,
+    });
   } catch (ex) {
     console.log(ex); // display error message in the console
     res.status(500); // write status parameter to the response
diff --git a/web/documentserver-example/nodejs/public/javascripts/formats.js b/web/documentserver-example/nodejs/public/javascripts/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/nodejs/public/javascripts/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/nodejs/public/javascripts/jscript.js b/web/documentserver-example/nodejs/public/javascripts/jscript.js
index 29feae9d..39e4db4c 100644
--- a/web/documentserver-example/nodejs/public/javascripts/jscript.js
+++ b/web/documentserver-example/nodejs/public/javascripts/jscript.js
@@ -19,13 +19,25 @@
 var language;
 var userid;
 var directUrl;
-var Formats;
+var formatManager;
 
 window.onload = function () {
     fetch('formats')
         .then((response) => response.json())
         .then((data) => {
-            Formats = data;
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.name,
+                        format.type,
+                        format.actions,
+                        format.convert,
+                        format.mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
         })
 }
 
@@ -125,7 +137,7 @@ if (typeof jQuery != "undefined") {
         var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (ConverExtList.indexOf(posExt) == -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -215,10 +227,7 @@ if (typeof jQuery != "undefined") {
         var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        var checkEdited = EditedExtList.split(",").filter(function(ext) { return ext == posExt;});
-        var checkFilled = FilledExtList.split(",").filter(function(ext) { return ext == posExt;});
-
-        if (checkEdited != "" || checkFilled != "") {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
@@ -369,10 +378,14 @@ if (typeof jQuery != "undefined") {
         jq("#convertFileName").removeClass("word slide cell");
         jq("#convertFileName").addClass(type);
         jq("#convTypes").empty();
-        let convExtensions = Formats.find(format => {return format.name == fileName.split('.').pop()}).convert;
-        convExtensions.forEach(ext => {
-            jq("#convTypes").append(jq(`<td name="convertingTypeButton" id="wordTo${ext}" class="button hoar" data="${ext}">${ext}</td>`));
-        });
+
+        let format = formatManager.findByExtension(fileName.split('.').pop());
+        if (format) {
+            format.convert.forEach(ext => {
+                jq("#convTypes").append(jq(`<td name="convertingTypeButton" id="wordTo${ext}" class="button hoar" data="${ext}">${ext}</td>`));
+            });
+        }
+
         jq("#hiddenFileName").val(fileName);
         jq("#convertStep1").addClass("done");
         jq("#convertStep2").addClass("waiting");
diff --git a/web/documentserver-example/nodejs/views/index.ejs b/web/documentserver-example/nodejs/views/index.ejs
index 0d707c2c..a3483884 100755
--- a/web/documentserver-example/nodejs/views/index.ejs
+++ b/web/documentserver-example/nodejs/views/index.ejs
@@ -373,12 +373,10 @@
     <script type="text/javascript" src="javascripts/jquery.iframe-transport.js"></script>
     <script type="text/javascript" src="javascripts/jquery.fileupload.js"></script>
     <script type="text/javascript" src="javascripts/jquery.dropdownToggle.js"></script>
+    <script type="text/javascript" src="javascripts/formats.js"></script>
     <script type="text/javascript" src="javascripts/jscript.js"></script>
 
     <script type="text/javascript">
-        var ConverExtList = "<%= convertExts %>";
-        var EditedExtList = "<%= editedExts %>";
-        var FilledExtList = "<%= fillExts %>";
         var UrlConverter = "convert";
         var UrlEditor = "editor";
     </script>
diff --git a/web/documentserver-example/nodejs/views/wopiIndex.ejs b/web/documentserver-example/nodejs/views/wopiIndex.ejs
index f090d579..2e2dce20 100755
--- a/web/documentserver-example/nodejs/views/wopiIndex.ejs
+++ b/web/documentserver-example/nodejs/views/wopiIndex.ejs
@@ -274,12 +274,10 @@
     <script type="text/javascript" src="javascripts/jquery.iframe-transport.js"></script>
     <script type="text/javascript" src="javascripts/jquery.fileupload.js"></script>
     <script type="text/javascript" src="javascripts/jquery.dropdownToggle.js"></script>
+    <script type="text/javascript" src="javascripts/formats.js"></script>
     <script type="text/javascript" src="javascripts/jscript.js"></script>
 
     <script type="text/javascript">
-        var ConverExtList = "<%= convertExts %>";
-        var EditedExtList = "<%= editedExts %>";
-        var FilledExtList = "<%= fillExts %>";
         var UrlConverter = "convert";
         var UrlEditor = "wopi-action";
     </script>
diff --git a/web/documentserver-example/php/assets/js/formats.js b/web/documentserver-example/php/assets/js/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/php/assets/js/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/php/assets/js/jscript.js b/web/documentserver-example/php/assets/js/jscript.js
index dd415e08..3ab02c28 100644
--- a/web/documentserver-example/php/assets/js/jscript.js
+++ b/web/documentserver-example/php/assets/js/jscript.js
@@ -17,6 +17,27 @@
  */
 
 var directUrl;
+var formatManager;
+
+window.onload = function () {
+    fetch('formats')
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                JSON.parse(data.formats).forEach(format => {
+                    formats.push(new Format(
+                        format.name,
+                        format.type,
+                        format.actions,
+                        format.convert,
+                        format.mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery != "undefined") {
     jq = jQuery.noConflict();
@@ -111,7 +132,7 @@ if (typeof jQuery != "undefined") {
         var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (ConverExtList.indexOf(posExt) == -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -206,9 +227,9 @@ if (typeof jQuery != "undefined") {
 
         var fileName = jq("#hiddenFileName").val();
         var posExt = fileName.lastIndexOf('.') + 1;
-        posExt = 0 <= posExt ? fileName.substring(posExt + 1).trim().toLowerCase() : '';
+        posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (EditedExtList.indexOf(posExt) != -1 || FillFormsExtList.indexOf(posExt) != -1) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/php/index.php b/web/documentserver-example/php/index.php
index fa17b217..04b5be69 100755
--- a/web/documentserver-example/php/index.php
+++ b/web/documentserver-example/php/index.php
@@ -143,6 +143,11 @@ function routers()
         echo json_encode($response);
         return;
     }
+    if (str_starts_with($path, '/formats')) {
+        $response = formats();
+        echo json_encode($response);
+        return;
+    }
 
     http_response_code(HTTPStatus::NotFound->value);
 }
diff --git a/web/documentserver-example/php/src/ajax.php b/web/documentserver-example/php/src/ajax.php
index ef343ada..f6cc2ebe 100644
--- a/web/documentserver-example/php/src/ajax.php
+++ b/web/documentserver-example/php/src/ajax.php
@@ -659,3 +659,19 @@ function restore()
         ];
     }
 }
+
+function formats()
+{
+    try {
+        $formatManager = new FormatManager();
+        $formats = $formatManager->all();
+
+        return [
+            'formats' => json_encode($formats)
+        ];
+    } catch (Exception $error) {
+        return [
+            'error' => 'Server error'
+        ];
+    }
+}
diff --git a/web/documentserver-example/php/src/views/IndexView.php b/web/documentserver-example/php/src/views/IndexView.php
index 604bb646..e368906c 100644
--- a/web/documentserver-example/php/src/views/IndexView.php
+++ b/web/documentserver-example/php/src/views/IndexView.php
@@ -44,9 +44,6 @@ final class IndexView extends View
             "editButton" => $this->getEditButton(),
             "dataDocs" => $this->getPreloaderUrl(),
             "date" => date("Y"),
-            "fillFormsExtList" => implode(",", $formatManager->fillableExtensions()),
-            "converExtList" => implode(",", $formatManager->convertibleExtensions()),
-            "editedExtList" => implode(",", $formatManager->editableExtensions()),
             "serverVersion" => $configManager -> getVersion(),
         ];
     }
diff --git a/web/documentserver-example/php/templates/index.tpl b/web/documentserver-example/php/templates/index.tpl
index fa221f4d..165ed059 100644
--- a/web/documentserver-example/php/templates/index.tpl
+++ b/web/documentserver-example/php/templates/index.tpl
@@ -220,11 +220,7 @@
 <script type="text/javascript" src="assets/js/jquery.iframe-transport.js"></script>
 <script type="text/javascript" src="assets/js/jquery.fileupload.js"></script>
 <script type="text/javascript" src="assets/js/jquery.dropdownToggle.js"></script>
+<script type="text/javascript" src="assets/js/formats.js"></script>
 <script type="text/javascript" src="assets/js/jscript.js"></script>
-<script type="text/javascript">
-    var FillFormsExtList = '{fillFormsExtList}';
-    var ConverExtList = '{converExtList}';
-    var EditedExtList = '{editedExtList}';
-</script>
 </body>
 </html>
\ No newline at end of file
diff --git a/web/documentserver-example/python/manage.py b/web/documentserver-example/python/manage.py
index d861336e..26d762bf 100644
--- a/web/documentserver-example/python/manage.py
+++ b/web/documentserver-example/python/manage.py
@@ -80,7 +80,8 @@ def routers():
         path('restore', actions.restore),
         path('saveas', actions.saveAs),
         path('track', actions.track),
-        path('upload', actions.upload)
+        path('upload', actions.upload),
+        path('formats', actions.formats)
     ]
     main += static(
         settings.STATIC_URL,
diff --git a/web/documentserver-example/python/src/views/actions.py b/web/documentserver-example/python/src/views/actions.py
index 89d41e6e..abc2c260 100755
--- a/web/documentserver-example/python/src/views/actions.py
+++ b/web/documentserver-example/python/src/views/actions.py
@@ -30,6 +30,8 @@ from src.configuration import ConfigurationManager
 from src.response import ErrorResponse
 from src.utils import docManager, fileUtils, serviceConverter, users, jwtManager, historyManager, trackManager
 from urllib.parse import urlparse, parse_qs
+from src.format import FormatManager
+import msgspec
 
 config_manager = ConfigurationManager()
 
@@ -667,3 +669,12 @@ def restore(request: HttpRequest) -> HttpResponse:
             message=f'{type(error)}: {error}',
             status=HTTPStatus.INTERNAL_SERVER_ERROR
         )
+
+
+@http.GET()
+def formats(request: HttpRequest) -> HttpResponse:
+    data = {
+        'formats': [msgspec.to_builtins(format) for format in FormatManager().all()]
+    }
+
+    return HttpResponse(json.dumps(data), content_type='application/json')
diff --git a/web/documentserver-example/python/src/views/index.py b/web/documentserver-example/python/src/views/index.py
index b15cfad6..4f1b87fd 100755
--- a/web/documentserver-example/python/src/views/index.py
+++ b/web/documentserver-example/python/src/views/index.py
@@ -16,17 +16,13 @@
 
 """
 
-import json
-
 from django.shortcuts import render
 
 from src.configuration import ConfigurationManager
-from src.format import FormatManager
 from src.utils import users
 from src.utils import docManager
 
 config_manager = ConfigurationManager()
-format_manager = FormatManager()
 
 
 def getDirectUrlParam(request):
@@ -41,10 +37,7 @@ def default(request):  # default parameters that will be passed to the template
         'users': users.USERS,
         'languages': config_manager.languages(),
         'preloadurl': config_manager.document_server_preloader_url().geturl(),
-        'editExt': json.dumps(format_manager.editable_extensions()),  # file extensions that can be edited
-        'convExt': json.dumps(format_manager.convertible_extensions()),  # file extensions that can be converted
         'files': docManager.getStoredFiles(request),  # information about stored files
-        'fillExt': json.dumps(format_manager.fillable_extensions()),
         'directUrl': str(getDirectUrlParam(request)).lower,
         'serverVersion': config_manager.getVersion()
     }
diff --git a/web/documentserver-example/python/static/js/formats.js b/web/documentserver-example/python/static/js/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/python/static/js/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/python/static/js/jscript.js b/web/documentserver-example/python/static/js/jscript.js
index 7a4d1acc..10c899b3 100644
--- a/web/documentserver-example/python/static/js/jscript.js
+++ b/web/documentserver-example/python/static/js/jscript.js
@@ -17,6 +17,27 @@
  */
 
 var directUrl;
+var formatManager;
+
+window.onload = function () {
+    fetch('formats')
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.name,
+                        format.type,
+                        format.actions,
+                        format.convert,
+                        format.mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery !== "undefined") {
     jq = jQuery.noConflict();
@@ -103,7 +124,7 @@ if (typeof jQuery !== "undefined") {
         var posExt = fileName.lastIndexOf(".");
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : "";
 
-        if (ConverExtList.indexOf(posExt) === -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -183,10 +204,10 @@ if (typeof jQuery !== "undefined") {
         jq("#beginView, #beginEmbedded").removeClass("disable");
 
         var fileName = jq("#hiddenFileName").val();
-        var posExt = fileName.lastIndexOf(".");
+        var posExt = fileName.lastIndexOf(".") + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : "";
 
-        if (EditedExtList.indexOf(posExt) !== -1 || FillExtList.indexOf(posExt) !== -1) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/python/templates/index.html b/web/documentserver-example/python/templates/index.html
index 1fcd008d..26240469 100644
--- a/web/documentserver-example/python/templates/index.html
+++ b/web/documentserver-example/python/templates/index.html
@@ -354,12 +354,10 @@
     <script type="text/javascript" src="{% static "js/jquery.blockUI.js" %}"></script>
     <script type="text/javascript" src="{% static "js/jquery.iframe-transport.js" %}"></script>
     <script type="text/javascript" src="{% static "js/jquery.fileupload.js" %}"></script>
+    <script type="text/javascript" src="{% static "js/formats.js" %}"></script>
     <script type="text/javascript" src="{% static "js/jscript.js" %}"></script>
 
     <script type="text/javascript">
-        var FillExtList = {{ fillExt | safe }};
-        var ConverExtList = {{ convExt | safe }};
-        var EditedExtList = {{ editExt | safe }};
         var UrlConverter = "convert";
         var UrlEditor = "edit";
     </script>
diff --git a/web/documentserver-example/ruby/app/assets/javascripts/formats.js b/web/documentserver-example/ruby/app/assets/javascripts/formats.js
new file mode 100644
index 00000000..e423eeb2
--- /dev/null
+++ b/web/documentserver-example/ruby/app/assets/javascripts/formats.js
@@ -0,0 +1,66 @@
+/**
+ *
+ * (c) Copyright Ascensio System SIA 2024
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+class Format {
+    constructor(name, type, actions, convert, mime) {
+        this.name = name;
+        this.type = type;
+        this.actions = actions;
+        this.convert = convert;
+        this.mime = mime;
+    }
+
+    isAutoConvertible() {
+        return this.actions.includes('auto-convert');
+    }
+
+    isEditable() {
+        return this.actions.includes('edit') || this.actions.includes('lossy-edit');
+    }
+
+    isFillable() {
+        return this.actions.includes('fill');
+    }
+}
+
+class FormatManager {
+    formats = [];
+
+    constructor(formats) {
+        if(Array.isArray(formats)) this.formats = formats;
+    }
+
+    findByExtension(extension) {
+        return this.formats.find(format => format.name == extension);
+    }
+
+    isAutoConvertible(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isAutoConvertible();
+    }
+
+    isEditable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isEditable();
+    }
+
+    isFillable(extension) {
+        let format = this.findByExtension(extension);
+        return format !== undefined && format.isFillable();
+    }
+}
\ No newline at end of file
diff --git a/web/documentserver-example/ruby/app/assets/javascripts/jscript.js b/web/documentserver-example/ruby/app/assets/javascripts/jscript.js
index 2972054a..41e5ff3a 100644
--- a/web/documentserver-example/ruby/app/assets/javascripts/jscript.js
+++ b/web/documentserver-example/ruby/app/assets/javascripts/jscript.js
@@ -18,6 +18,27 @@
 
 var directUrl;
 var userId;
+var formatManager;
+
+window.onload = function () {
+    fetch('formats')
+        .then((response) => response.json())
+        .then((data) => {
+            if (data.formats) {
+                let formats = [];
+                data.formats.forEach(format => {
+                    formats.push(new Format(
+                        format.name,
+                        format.type,
+                        format.actions,
+                        format.convert,
+                        format.mime
+                    ));
+                });
+                formatManager = new FormatManager(formats);
+            }
+        })
+}
 
 if (typeof jQuery != "undefined") {
     jq = jQuery.noConflict();
@@ -111,10 +132,10 @@ if (typeof jQuery != "undefined") {
         jq("#filePass").val("");
 
         var fileName = jq("#hiddenFileName").val();
-        var posExt = fileName.lastIndexOf('.');
+        var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (ConvertExtList.indexOf(posExt) == -1) {
+        if (!formatManager.isAutoConvertible(posExt)) {
             jq("#step2").addClass("done").removeClass("current");
             loadScripts();
             return;
@@ -194,10 +215,10 @@ if (typeof jQuery != "undefined") {
         jq("#beginView, #beginEmbedded").removeClass("disable");
 
         var fileName = jq("#hiddenFileName").val();
-        var posExt = fileName.lastIndexOf('.');
+        var posExt = fileName.lastIndexOf('.') + 1;
         posExt = 0 <= posExt ? fileName.substring(posExt).trim().toLowerCase() : '';
 
-        if (EditedExtList.indexOf(posExt) != -1 || FillExtList.indexOf(posExt) != -1) {
+        if (formatManager.isEditable(posExt) || formatManager.isFillable(posExt)) {
             jq("#beginEdit").removeClass("disable");
         }
     };
diff --git a/web/documentserver-example/ruby/app/controllers/home_controller.rb b/web/documentserver-example/ruby/app/controllers/home_controller.rb
index 9d454425..01df590e 100755
--- a/web/documentserver-example/ruby/app/controllers/home_controller.rb
+++ b/web/documentserver-example/ruby/app/controllers/home_controller.rb
@@ -547,4 +547,15 @@ class HomeController < ApplicationController
       }
     )
   end
+
+  # return all supported formats
+  def formats
+    render(
+      json: JSON.generate(
+        {
+          formats: FormatManager.new.all.map(&:serialize)
+        }
+      )
+    )
+  end
 end
diff --git a/web/documentserver-example/ruby/app/views/home/index.html.erb b/web/documentserver-example/ruby/app/views/home/index.html.erb
index 96600c39..94d9132b 100755
--- a/web/documentserver-example/ruby/app/views/home/index.html.erb
+++ b/web/documentserver-example/ruby/app/views/home/index.html.erb
@@ -345,9 +345,6 @@
 <%= javascript_include_tag "application" %>
 
 <script language="javascript" type="text/javascript">
-    var FillExtList = '<%= DocumentHelper.fill_forms_exts.join"," %>';
-    var ConvertExtList = '<%= DocumentHelper.convert_exts.join(",") %>';
-    var EditedExtList = '<%= DocumentHelper.edited_exts.join(",") %>';
     var UrlConverter = '<%= convert_path %>';
     var UrlEditor = '<%= editor_path %>';
 </script>
diff --git a/web/documentserver-example/ruby/config/application.rb b/web/documentserver-example/ruby/config/application.rb
index 82525745..6442a7c8 100644
--- a/web/documentserver-example/ruby/config/application.rb
+++ b/web/documentserver-example/ruby/config/application.rb
@@ -46,5 +46,6 @@ class Application < Rails::Application
     match '/saveas', to: 'home#saveas', via: 'post'
     match '/track', to: 'home#track', via: 'post'
     match '/upload', to: 'home#upload', via: 'post'
+    match '/formats', to: 'home#formats', via: 'get'
   end
 end