Langflow version 1.6 and later: The Docling dependency is included by default for all operating systems except macOS Intel (x86_64).
-For macOS Intel (x86_64), use the Docling installation guide to install the Docling dependency.
+Langflow Desktop: Set LANGFLOW_DOCLING=True in your .env file to enable Docling dependency installation. For more information, see Set environment variables for Langflow Desktop.
Earlier versions: Langflow versions earlier than 1.6 don't include the Docling dependency.
-For Langflow OSS, install the Docling extra with uv pip install 'langflow[docling]'.
-For Langflow Desktop, add the Docling dependency to Langflow Desktop's requirements.txt.
-For more information, see Install custom dependencies.
Langflow OSS:
+langflow (uv pip install langflow), Docling is included automatically through bundled extras.langflow-base directly, install Docling with an extra, for example uv pip install "langflow-base[docling]".macOS Intel (x86_64): Use the Docling installation guide to install the Docling dependency.
+Earlier versions: Langflow versions earlier than 1.6 don't include the Docling dependency by default.
For more information, see Install custom dependencies.
To submit a pull request, do the following:
main branch.feat: add new feature and fixes are fix: correct issue with X.Open a GitHub pull request against the active release-X.Y.Z release candidate branch.
+Do not target main.
+For example, if the latest released version is 1.8.0, your pull request should target the release-1.9.0 branch.
+Include a clear title and description.
Ensure the PR title follows semantic commit conventions. For example, features are feat: add new feature and fixes are fix: correct issue with X.
Some additional guidance on pull request titles:
The .env file is a text file that contains key-value pairs of environment variables.
Create or edit a .env file in the root directory of your application or Langflow environment, and then add your configuration variables to the file:
_29DO_NOT_TRACK=True_29LANGFLOW_AUTO_LOGIN=False_29LANGFLOW_AUTO_SAVING=True_29LANGFLOW_AUTO_SAVING_INTERVAL=1000_29LANGFLOW_BACKEND_ONLY=False_29LANGFLOW_BUNDLE_URLS=["https://github.com/user/repo/commit/hash"]_29LANGFLOW_CACHE_TYPE=async_29LANGFLOW_COMPONENTS_PATH=/path/to/components/_29LANGFLOW_CONFIG_DIR=/path/to/config/_29LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow_29LANGFLOW_DEV=False_29LANGFLOW_FALLBACK_TO_ENV_VAR=False_29LANGFLOW_HEALTH_CHECK_MAX_RETRIES=5_29LANGFLOW_HOST=localhost_29LANGFLOW_LANGCHAIN_CACHE=InMemoryCache_29LANGFLOW_MAX_FILE_SIZE_UPLOAD=10000_29LANGFLOW_MAX_ITEMS_LENGTH=100_29LANGFLOW_MAX_TEXT_LENGTH=1000_29LANGFLOW_LOG_LEVEL=error_29LANGFLOW_OPEN_BROWSER=False_29LANGFLOW_PORT=7860_29LANGFLOW_REMOVE_API_KEYS=False_29LANGFLOW_SAVE_DB_IN_CONFIG_DIR=True_29LANGFLOW_SECRET_KEY=somesecretkey_29LANGFLOW_STORE_ENVIRONMENT_VARIABLES=True_29LANGFLOW_SUPERUSER=adminuser_29LANGFLOW_SUPERUSER_PASSWORD=adminpass_29LANGFLOW_WORKER_TIMEOUT=60000_29LANGFLOW_WORKERS=3
A systemd service configuration file configures Linux system services.
To add environment variables, create or edit a service configuration file and add an override.conf file. This file allows you to override the default environment variables for the service.
_32[Service]_32Environment="DO_NOT_TRACK=true"_32Environment="LANGFLOW_AUTO_LOGIN=false"_32Environment="LANGFLOW_AUTO_SAVING=true"_32Environment="LANGFLOW_AUTO_SAVING_INTERVAL=1000"_32Environment="LANGFLOW_BACKEND_ONLY=false"_32Environment="LANGFLOW_BUNDLE_URLS=[\"https://github.com/user/repo/commit/hash\"]"_32Environment="LANGFLOW_CACHE_TYPE=async"_32Environment="LANGFLOW_COMPONENTS_PATH=/path/to/components/"_32Environment="LANGFLOW_CONFIG_DIR=/path/to/config"_32Environment="LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow"_32Environment="LANGFLOW_DEV=false"_32Environment="LANGFLOW_FALLBACK_TO_ENV_VAR=false"_32Environment="LANGFLOW_HEALTH_CHECK_MAX_RETRIES=5"_32Environment="LANGFLOW_HOST=localhost"_32Environment="LANGFLOW_LANGCHAIN_CACHE=InMemoryCache"_32Environment="LANGFLOW_MAX_FILE_SIZE_UPLOAD=10000"_32Environment="LANGFLOW_MAX_ITEMS_LENGTH=100"_32Environment="LANGFLOW_MAX_TEXT_LENGTH=1000"_32Environment="LANGFLOW_LOG_ENV=container_json"_32Environment="LANGFLOW_LOG_FILE=logs/langflow.log"_32Environment="LANGFLOW_LOG_LEVEL=error"_32Environment="LANGFLOW_OPEN_BROWSER=false"_32Environment="LANGFLOW_PORT=7860"_32Environment="LANGFLOW_REMOVE_API_KEYS=false"_32Environment="LANGFLOW_SAVE_DB_IN_CONFIG_DIR=true"_32Environment="LANGFLOW_SECRET_KEY=somesecretkey"_32Environment="LANGFLOW_STORE_ENVIRONMENT_VARIABLES=true"_32Environment="LANGFLOW_SUPERUSER=adminuser"_32Environment="LANGFLOW_SUPERUSER_PASSWORD=adminpass"_32Environment="LANGFLOW_WORKER_TIMEOUT=60000"_32Environment="LANGFLOW_WORKERS=3"
For more information on systemd, see the Red Hat documentation.
The tasks.json file located in .vscode/tasks.json is a configuration file for development environments using Visual Studio Code.
Create or edit the .vscode/tasks.json file in your project root.
_47{_47 "version": "2.0.0",_47 "options": {_47 "env": {_47 "DO_NOT_TRACK": "true",_47 "LANGFLOW_AUTO_LOGIN": "false",_47 "LANGFLOW_AUTO_SAVING": "true",_47 "LANGFLOW_AUTO_SAVING_INTERVAL": "1000",_47 "LANGFLOW_BACKEND_ONLY": "false",_47 "LANGFLOW_BUNDLE_URLS": "[\"https://github.com/user/repo/commit/hash\"]",_47 "LANGFLOW_CACHE_TYPE": "async",_47 "LANGFLOW_COMPONENTS_PATH": "D:/path/to/components/",_47 "LANGFLOW_CONFIG_DIR": "D:/path/to/config/",_47 "LANGFLOW_DATABASE_URL": "postgresql://postgres:password@localhost:5432/langflow",_47 "LANGFLOW_DEV": "false",_47 "LANGFLOW_FALLBACK_TO_ENV_VAR": "false",_47 "LANGFLOW_HEALTH_CHECK_MAX_RETRIES": "5",_47 "LANGFLOW_HOST": "localhost",_47 "LANGFLOW_LANGCHAIN_CACHE": "InMemoryCache",_47 "LANGFLOW_MAX_FILE_SIZE_UPLOAD": "10000",_47 "LANGFLOW_MAX_ITEMS_LENGTH": "100",_47 "LANGFLOW_MAX_TEXT_LENGTH": "1000",_47 "LANGFLOW_LOG_ENV": "container_csv",_47 "LANGFLOW_LOG_FILE": "langflow.log",_47 "LANGFLOW_LOG_LEVEL": "error",_47 "LANGFLOW_OPEN_BROWSER": "false",_47 "LANGFLOW_PORT": "7860",_47 "LANGFLOW_REMOVE_API_KEYS": "true",_47 "LANGFLOW_SAVE_DB_IN_CONFIG_DIR": "false",_47 "LANGFLOW_SECRET_KEY": "somesecretkey",_47 "LANGFLOW_STORE_ENVIRONMENT_VARIABLES": "true",_47 "LANGFLOW_SUPERUSER": "adminuser",_47 "LANGFLOW_SUPERUSER_PASSWORD": "adminpass",_47 "LANGFLOW_WORKER_TIMEOUT": "60000",_47 "LANGFLOW_WORKERS": "3"_47 }_47 },_47 "tasks": [_47 {_47 "label": "langflow backend",_47 "type": "shell",_47 "command": ". ./langflownightly/Scripts/activate && langflow run",_47 "isBackground": true,_47 "problemMatcher": []_47 }_47 ]_47}
To run Langflow using the above VSCode tasks.json file, in the VSCode command palette, select Tasks: Run Task > langflow backend.
Environment variables set in your terminal aren't automatically available to GUI-based applications like Langflow Desktop when you launch them from the Windows or macOS GUI.
-For Windows, this means any GUI-based app launched from the Start menu, desktop shortcuts, or Windows Explorer.
-For macOS, this means any GUI-based app launched from Finder, Spotlight, Launchpad, or the Dock.
-To set environment variables for Langflow Desktop, you need to use specific commands or files, depending on your OS.
-Langflow Desktop for macOS cannot automatically use variables set in your terminal, such as those in.zshrc or .bash_profile, when launched from the macOS GUI.
To make environment variables available to GUI apps on macOS, you need to use launchctl with a plist file:
To modify environment variables for Langflow Desktop, set environment variables in a Desktop .env file, and then restart the app.
To modify the macOS .env file, do the following:
Create the LaunchAgents directory if it doesn't exist:
_10mkdir -p ~/Library/LaunchAgents
Create or edit ~/.langflow/data/.env.
In the LaunchAgents directory, create a .plist file called dev.langflow.env.
Add your Langflow environment variables, for example:
+
_10LANGFLOW_LOG_LEVEL=info_10LANGFLOW_DOCLING=true
Add the following content to dev.langflow.env.plist, and then add, change, or remove Langflow environment variables as needed for your configuration.
This example sets multiple environmental variables for all GUI apps launched from the macOS GUI.
-
_21 <?xml version="1.0" encoding="UTF-8"?>_21 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">_21 <plist version="1.0">_21 <dict>_21 <key>Label</key>_21 <string>dev.langflow.env</string>_21 <key>ProgramArguments</key>_21 <array>_21 <string>/bin/sh</string>_21 <string>-c</string>_21 <string>_21 launchctl setenv LANGFLOW_CONFIG_DIR /Users/your_user/custom/config ;_21 launchctl setenv LANGFLOW_PORT 7860 ;_21 launchctl setenv LANGFLOW_HOST localhost ;_21 launchctl setenv ARIZE_API_KEY ak-..._21 </string>_21 </array>_21 <key>RunAtLoad</key>_21 <true/>_21 </dict>_21 </plist>
Save the file.
Load the file with launchctl:
_10launchctl bootstrap gui/$(id -u) ~/Library/LaunchAgents/dev.langflow.env.plist
Restart Langflow Desktop.
Langflow Desktop for Windows cannot automatically use variables set in your terminal, such as those defined with set in cmd or $env:VAR=... in PowerShell, when launched from the Windows GUI.
To make environment variables available to the Langflow Desktop app, you must set them at the user or system level using the System Properties interface or the Terminal.
To set environment variables using the System Properties interface, do the following:
To modify the Windows .env file, do the following:
Press Win + R, enter SystemPropertiesAdvanced, and then press Enter.
Create or edit %APPDATA%\com.LangflowDesktop\data\.env.
Click Environment Variables.
+Add your Langflow environment variables, for example:
+
_10LANGFLOW_LOG_LEVEL=info_10LANGFLOW_DOCLING=true
Under User variables, click New.
-To apply the setting to all users, select System variables.
Save the file.
Enter the name of the Langflow variable you want to set, such as LANGFLOW_CONFIG_DIR, and the desired value, such as C:\Users\your_user\.langflow_config.
Click OK to save the variable.
-Repeat until you have set all necessary Langflow environment variables.
-Launch or restart Langflow Desktop to apply the environment variables.
-To define environment variables for Windows using PowerShell, do the following:
Enter the name of the Langflow variable you want to set, such as LANGFLOW_CONFIG_DIR, and the desired value, such as C:\Users\your_user\.langflow_config.
To set an environment variable for the current user:
-
_10[System.Environment]::SetEnvironmentVariable("LANGFLOW_CONFIG_DIR", "C:\Users\your_user\.langflow_config", "User")
To set an environment variable for all users (you must have Administrator priveleges):
-
_10[System.Environment]::SetEnvironmentVariable("LANGFLOW_CONFIG_DIR", "C:\Langflow\Config", "Machine")
Repeat until you have set all necessary Langflow environment variables.
-Launch or restart Langflow Desktop to apply the environment variables.
+Restart Langflow Desktop.
Windows supports two sources for Langflow Desktop environment variables: a Langflow application .env file, and Windows user environment variables.
The .env file at %APPDATA%\com.LangflowDesktop\data\.env is the recommended approach, but
+Windows user variables are useful for single-sourcing API keys between Langflow and other Windows applications.
+If the same variable is defined in both the Langflow application .env file and as a Windows user environment variable, the .env file takes precedence.
To modify the Windows user environment variables, do the following:
sysdm.cpl, and then press Enter.OPENAI_API_KEY, and its value.The following sections provide information about specific Langflow environment variables.
diff --git a/get-started-installation.html b/get-started-installation.html index ae883669fc..b9b70f7689 100644 --- a/get-started-installation.html +++ b/get-started-installation.html @@ -25,7 +25,7 @@ - + diff --git a/get-started-quickstart.html b/get-started-quickstart.html index c4b2987697..35b3bdda88 100644 --- a/get-started-quickstart.html +++ b/get-started-quickstart.html @@ -25,7 +25,7 @@ - + diff --git a/guardrails.html b/guardrails.html index a49b78d1b9..ab06199eb9 100644 --- a/guardrails.html +++ b/guardrails.html @@ -25,7 +25,7 @@ - + diff --git a/if-else.html b/if-else.html index 19ecec55a1..850f6b7084 100644 --- a/if-else.html +++ b/if-else.html @@ -25,7 +25,7 @@ - + diff --git a/img/langflow-logo-color-black-solid.svg b/img/langflow-logo-color-black-solid.svg new file mode 100644 index 0000000000..2dae875821 --- /dev/null +++ b/img/langflow-logo-color-black-solid.svg @@ -0,0 +1,21 @@ + diff --git a/img/langflow-logo-color-blue-bg.svg b/img/langflow-logo-color-blue-bg.svg new file mode 100644 index 0000000000..ef967c6bde --- /dev/null +++ b/img/langflow-logo-color-blue-bg.svg @@ -0,0 +1,21 @@ + \ No newline at end of file diff --git a/index.html b/index.html index 91a09ba921..d1674ba03b 100644 --- a/index.html +++ b/index.html @@ -25,7 +25,7 @@ - + diff --git a/install-custom-dependencies.html b/install-custom-dependencies.html index c67f777d91..5bdf437a3b 100644 --- a/install-custom-dependencies.html +++ b/install-custom-dependencies.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-arize.html b/integrations-arize.html index 42f3551317..5f1d3cff62 100644 --- a/integrations-arize.html +++ b/integrations-arize.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-instana-traceloop.html b/integrations-instana-traceloop.html index 6414fa6bb3..2bef4bfd58 100644 --- a/integrations-instana-traceloop.html +++ b/integrations-instana-traceloop.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-langfuse.html b/integrations-langfuse.html index c6e893a157..b28a4032eb 100644 --- a/integrations-langfuse.html +++ b/integrations-langfuse.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-langsmith.html b/integrations-langsmith.html index 62da06e359..738eb741af 100644 --- a/integrations-langsmith.html +++ b/integrations-langsmith.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-langwatch.html b/integrations-langwatch.html index 595fc50ed6..2c1b5b4224 100644 --- a/integrations-langwatch.html +++ b/integrations-langwatch.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-openlayer.html b/integrations-openlayer.html index 68ed11d563..f9cd46fbcc 100644 --- a/integrations-openlayer.html +++ b/integrations-openlayer.html @@ -25,7 +25,7 @@ - + diff --git a/integrations-opik.html b/integrations-opik.html index 68fffaebab..f439d750bb 100644 --- a/integrations-opik.html +++ b/integrations-opik.html @@ -25,7 +25,7 @@ - + diff --git a/jwt-authentication.html b/jwt-authentication.html index 4b5931d45a..f4568750c5 100644 --- a/jwt-authentication.html +++ b/jwt-authentication.html @@ -25,7 +25,7 @@ - + diff --git a/knowledge-base.html b/knowledge-base.html index f9c628abc6..4a599b0173 100644 --- a/knowledge-base.html +++ b/knowledge-base.html @@ -25,7 +25,7 @@ - + diff --git a/knowledge.html b/knowledge.html index 7b6eec6614..8b58b2313d 100644 --- a/knowledge.html +++ b/knowledge.html @@ -25,7 +25,7 @@ - + diff --git a/legacy-core-components.html b/legacy-core-components.html index 92c271f53b..ce9511f54e 100644 --- a/legacy-core-components.html +++ b/legacy-core-components.html @@ -25,7 +25,7 @@ - + diff --git a/llm-selector.html b/llm-selector.html index d0be236792..1455b29b07 100644 --- a/llm-selector.html +++ b/llm-selector.html @@ -25,7 +25,7 @@ - + diff --git a/logging.html b/logging.html index ecdd97bb77..79d857a29e 100644 --- a/logging.html +++ b/logging.html @@ -25,7 +25,7 @@ - + diff --git a/loop.html b/loop.html index bc996997fb..80a157a1df 100644 --- a/loop.html +++ b/loop.html @@ -25,7 +25,7 @@ - + diff --git a/luna-for-langflow.html b/luna-for-langflow.html index 3dcb3424aa..fdefa23603 100644 --- a/luna-for-langflow.html +++ b/luna-for-langflow.html @@ -25,7 +25,7 @@ - + diff --git a/mcp-client.html b/mcp-client.html index fe47a7af99..0d0cfb2900 100644 --- a/mcp-client.html +++ b/mcp-client.html @@ -25,7 +25,7 @@ - + diff --git a/mcp-component-astra.html b/mcp-component-astra.html index 1056fc1e7f..41f36bcf65 100644 --- a/mcp-component-astra.html +++ b/mcp-component-astra.html @@ -25,7 +25,7 @@ - + diff --git a/mcp-server.html b/mcp-server.html index 1fab25741c..92eda9240b 100644 --- a/mcp-server.html +++ b/mcp-server.html @@ -25,7 +25,7 @@ - + diff --git a/mcp-tools.html b/mcp-tools.html index f7dbfe8ebf..14613efc8e 100644 --- a/mcp-tools.html +++ b/mcp-tools.html @@ -25,7 +25,7 @@ - + diff --git a/mcp-tutorial.html b/mcp-tutorial.html index b2d2003eb5..917366408d 100644 --- a/mcp-tutorial.html +++ b/mcp-tutorial.html @@ -25,7 +25,7 @@ - + diff --git a/memory.html b/memory.html index 932ec54ad4..cfb7a19246 100644 --- a/memory.html +++ b/memory.html @@ -25,7 +25,7 @@ - + diff --git a/message-history.html b/message-history.html index 624ebf9a11..df0a315960 100644 --- a/message-history.html +++ b/message-history.html @@ -25,7 +25,7 @@ - + diff --git a/mock-data.html b/mock-data.html index 943a76b5b5..c7b2412380 100644 --- a/mock-data.html +++ b/mock-data.html @@ -25,7 +25,7 @@ - + diff --git a/notify-and-listen.html b/notify-and-listen.html index 9101d26554..e26b777ade 100644 --- a/notify-and-listen.html +++ b/notify-and-listen.html @@ -25,7 +25,7 @@ - + diff --git a/parser.html b/parser.html index 17a9aedf68..66bd39ce77 100644 --- a/parser.html +++ b/parser.html @@ -25,7 +25,7 @@ - + diff --git a/python-interpreter.html b/python-interpreter.html index eb4c0a39b6..a3b170e79e 100644 --- a/python-interpreter.html +++ b/python-interpreter.html @@ -25,7 +25,7 @@ - + diff --git a/read-file.html b/read-file.html index e854c88eef..5de1cf8228 100644 --- a/read-file.html +++ b/read-file.html @@ -25,7 +25,7 @@ - + diff --git a/release-notes.html b/release-notes.html index 1e683f9395..25d03db279 100644 --- a/release-notes.html +++ b/release-notes.html @@ -25,7 +25,7 @@ - + @@ -136,6 +136,18 @@ This means that MCP server configurations, including the default Langflow MCP seFor more information, see Upgrade the Langflow Docker image.
+Disabled tool calling for Gemini 3 preview models
+Tool calling is temporarily disabled for the following Google Gemini 3 preview models:
+gemini-3.1-pro-preview, gemini-3-pro-preview, gemini-3-flash-preview, and gemini-3-pro-image-preview.
Docling installation behavior differs between Desktop and OSS
+In Langflow 1.8.0, Docling behavior depends on how Langflow is installed.
+For Langflow Desktop installations, you need to set LANGFLOW_DOCLING=True in your .env file to enable Docling dependency installation. For more information, see Set environment variables for Langflow Desktop.
For Langflow OSS installations with uv pip install langflow, Docling is included with the Langflow package.
For Langflow OSS installations with uv pip install langflow-base, install Docling explicitly as an extra with uv pip install "langflow-base[docling]".
Authentication enforced for Langflow API requests by default
diff --git a/run-flow.html b/run-flow.html index a9c4e8bd5b..0137efc4de 100644 --- a/run-flow.html +++ b/run-flow.html @@ -25,7 +25,7 @@ - + diff --git a/search.html b/search.html index b57bea4988..2e9a2b7610 100644 --- a/search.html +++ b/search.html @@ -25,7 +25,7 @@ - + diff --git a/security.html b/security.html index 79ec9d3c37..80fed333a6 100644 --- a/security.html +++ b/security.html @@ -25,7 +25,7 @@ - + diff --git a/session-id.html b/session-id.html index b63d9b42e9..0650631f12 100644 --- a/session-id.html +++ b/session-id.html @@ -25,7 +25,7 @@ - + diff --git a/sitemap.xml b/sitemap.xml index 9e6daec2a0..9683d9ec99 100644 --- a/sitemap.xml +++ b/sitemap.xml @@ -1 +1 @@ -