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class="breadcrumbs__link">Components</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Processing</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Processing components in Langflow</h1></header>
<p>Processing components process and transform data within a flow.</p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="use-a-processing-component-in-a-flow">Use a processing component in a flow<a href="#use-a-processing-component-in-a-flow" class="hash-link" aria-label="Direct link to Use a processing component in a flow" title="Direct link to Use a processing component in a flow">​</a></h2>
<p>The <strong>Split Text</strong> processing component in this flow splits the incoming <a href="/concepts-objects">Data</a> into chunks to be embedded into the vector store component.</p>
<p>The component offers control over chunk size, overlap, and separator, which affect context and granularity in vector store retrieval results.</p>
<p><img decoding="async" loading="lazy" src="/assets/images/vector-store-document-ingestion-fce32e9be440846a2545397e3a18b7bf.png" width="1804" height="1546" class="img_ev3q"></p>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="alter-metadata">Alter metadata<a href="#alter-metadata" class="hash-link" aria-label="Direct link to Alter metadata" title="Direct link to Alter metadata">​</a></h2>
<p>This component modifies metadata of input objects. It can add new metadata, update existing metadata, and remove specified metadata fields. The component works with both <a href="/concepts-objects#message-object">Message</a> and <a href="/concepts-objects#data-object">Data</a> objects, and can also create a new Data object from user-provided text.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs">Inputs<a href="#inputs" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>input_value</td><td>Input</td><td>Objects to which Metadata should be added</td></tr><tr><td>text_in</td><td>User Text</td><td>Text input; the value will be in the &#x27;text&#x27; attribute of the <a href="/concepts-objects#data-object">Data</a> object. Empty text entries are ignored.</td></tr><tr><td>metadata</td><td>Metadata</td><td>Metadata to add to each object</td></tr><tr><td>remove_fields</td><td>Fields to Remove</td><td>Metadata Fields to Remove</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs">Outputs<a href="#outputs" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>List of Input objects, each with added metadata</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="combine-text">Combine text<a href="#combine-text" class="hash-link" aria-label="Direct link to Combine text" title="Direct link to Combine text">​</a></h2>
<p>This component concatenates two text sources into a single text chunk using a specified delimiter.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-1">Inputs<a href="#inputs-1" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>first_text</td><td>First Text</td><td>The first text input to concatenate.</td></tr><tr><td>second_text</td><td>Second Text</td><td>The second text input to concatenate.</td></tr><tr><td>delimiter</td><td>Delimiter</td><td>A string used to separate the two text inputs. Defaults to a space.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-1">Outputs<a href="#outputs-1" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>message</td><td>Message</td><td>A <a href="/concepts-objects#message-object">Message</a> object containing the combined text.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="create-data">Create data<a href="#create-data" class="hash-link" aria-label="Direct link to Create data" title="Direct link to Create data">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.1.3.</p></div></div>
<p>This component dynamically creates a <a href="/concepts-objects#data-object">Data</a> object with a specified number of fields.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-2">Inputs<a href="#inputs-2" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>number_of_fields</td><td>Number of Fields</td><td>The number of fields to be added to the record.</td></tr><tr><td>text_key</td><td>Text Key</td><td>Key that identifies the field to be used as the text content.</td></tr><tr><td>text_key_validator</td><td>Text Key Validator</td><td>If enabled, checks if the given <code>Text Key</code> is present in the given <code>Data</code>.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-2">Outputs<a href="#outputs-2" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>A <a href="/concepts-objects#data-object">Data</a> object created with the specified fields and text key.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="data-combiner">Data combiner<a href="#data-combiner" class="hash-link" aria-label="Direct link to Data combiner" title="Direct link to Data combiner">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>Prior to Langflow version 1.1.3, this component was named <strong>Merge Data</strong>.</p></div></div>
<p>This component combines multiple data sources into a single unified <a href="/concepts-objects#data-object">Data</a> object.</p>
<p>The component iterates through the input list of data objects, merging them into a single data object. If the input list is empty, it returns an empty data object. If there&#x27;s only one input data object, it returns that object unchanged. The merging process uses the addition operator to combine data objects.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-3">Inputs<a href="#inputs-3" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>A list of data objects to be merged.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-3">Outputs<a href="#outputs-3" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>merged_data</td><td>Merged Data</td><td>A single <a href="/concepts-objects#data-object">Data</a> object containing the combined information from all input data objects.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="dataframe-operations">DataFrame operations<a href="#dataframe-operations" class="hash-link" aria-label="Direct link to DataFrame operations" title="Direct link to DataFrame operations">​</a></h2>
<p>This component performs the following operations on Pandas <a href="https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.html" target="_blank" rel="noopener noreferrer">DataFrame</a>:</p>
<table><thead><tr><th>Operation</th><th>Description</th><th>Required Inputs</th></tr></thead><tbody><tr><td>Add Column</td><td>Adds a new column with a constant value</td><td>new_column_name, new_column_value</td></tr><tr><td>Drop Column</td><td>Removes a specified column</td><td>column_name</td></tr><tr><td>Filter</td><td>Filters rows based on column value</td><td>column_name, filter_value</td></tr><tr><td>Head</td><td>Returns first n rows</td><td>num_rows</td></tr><tr><td>Rename Column</td><td>Renames an existing column</td><td>column_name, new_column_name</td></tr><tr><td>Replace Value</td><td>Replaces values in a column</td><td>column_name, replace_value, replacement_value</td></tr><tr><td>Select Columns</td><td>Selects specific columns</td><td>columns_to_select</td></tr><tr><td>Sort</td><td>Sorts DataFrame by column</td><td>column_name, ascending</td></tr><tr><td>Tail</td><td>Returns last n rows</td><td>num_rows</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-4">Inputs<a href="#inputs-4" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>df</td><td>DataFrame</td><td>The input DataFrame to operate on.</td></tr><tr><td>operation</td><td>Operation</td><td>Select the DataFrame operation to perform. Options: Add Column, Drop Column, Filter, Head, Rename Column, Replace Value, Select Columns, Sort, Tail</td></tr><tr><td>column_name</td><td>Column Name</td><td>The column name to use for the operation.</td></tr><tr><td>filter_value</td><td>Filter Value</td><td>The value to filter rows by.</td></tr><tr><td>ascending</td><td>Sort Ascending</td><td>Whether to sort in ascending order.</td></tr><tr><td>new_column_name</td><td>New Column Name</td><td>The new column name when renaming or adding a column.</td></tr><tr><td>new_column_value</td><td>New Column Value</td><td>The value to populate the new column with.</td></tr><tr><td>columns_to_select</td><td>Columns to Select</td><td>List of column names to select.</td></tr><tr><td>num_rows</td><td>Number of Rows</td><td>Number of rows to return (for head/tail). Default: 5</td></tr><tr><td>replace_value</td><td>Value to Replace</td><td>The value to replace in the column.</td></tr><tr><td>replacement_value</td><td>Replacement Value</td><td>The value to replace with.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-4">Outputs<a href="#outputs-4" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>output</td><td>DataFrame</td><td>The resulting DataFrame after the operation.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="data-to-message">Data to message<a href="#data-to-message" class="hash-link" aria-label="Direct link to Data to message" title="Direct link to Data to message">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>Prior to Langflow version 1.1.3, this component was named <strong>Parse Data</strong>.</p></div></div>
<p>The ParseData component converts data objects into plain text using a specified template.
This component transforms structured data into human-readable text formats, allowing for customizable output through the use of templates.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-5">Inputs<a href="#inputs-5" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>The data to convert to text.</td></tr><tr><td>template</td><td>Template</td><td>The template to use for formatting the data. It can contain the keys <code>{text}</code>, <code>{data}</code>, or any other key in the data.</td></tr><tr><td>sep</td><td>Separator</td><td>The separator to use between multiple data items.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-5">Outputs<a href="#outputs-5" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>text</td><td>Text</td><td>The resulting formatted text string as a <a href="/concepts-objects#message-object">Message</a> object.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="filter-data">Filter data<a href="#filter-data" class="hash-link" aria-label="Direct link to Filter data" title="Direct link to Filter data">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Beta</strong> as of Langflow version 1.1.3, and is not yet fully supported.</p></div></div>
<p>This component filters a <a href="/concepts-objects#data-object">Data</a> object based on a list of keys.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-6">Inputs<a href="#inputs-6" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>Data object to filter.</td></tr><tr><td>filter_criteria</td><td>Filter Criteria</td><td>List of keys to filter by.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-6">Outputs<a href="#outputs-6" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>filtered_data</td><td>Filtered Data</td><td>A new <a href="/concepts-objects#data-object">Data</a> object containing only the key-value pairs that match the filter criteria.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="filter-values">Filter values<a href="#filter-values" class="hash-link" aria-label="Direct link to Filter values" title="Direct link to Filter values">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Beta</strong> as of Langflow version 1.1.3, and is not yet fully supported.</p></div></div>
<p>The Filter values component filters a list of data items based on a specified key, filter value, and comparison operator.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-7">Inputs<a href="#inputs-7" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>input_data</td><td>Input data</td><td>The list of data items to filter.</td></tr><tr><td>filter_key</td><td>Filter Key</td><td>The key to filter on, for example, &#x27;route&#x27;.</td></tr><tr><td>filter_value</td><td>Filter Value</td><td>The value to filter by, for example, &#x27;CMIP&#x27;.</td></tr><tr><td>operator</td><td>Comparison Operator</td><td>The operator to apply for comparing the values.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-7">Outputs<a href="#outputs-7" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>filtered_data</td><td>Filtered data</td><td>The resulting list of filtered data items.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="json-cleaner">JSON cleaner<a href="#json-cleaner" class="hash-link" aria-label="Direct link to JSON cleaner" title="Direct link to JSON cleaner">​</a></h2>
<p>The JSON cleaner component cleans JSON strings to ensure they are fully compliant with the JSON specification.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-8">Inputs<a href="#inputs-8" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>json_str</td><td>JSON String</td><td>The JSON string to be cleaned. This can be a raw, potentially malformed JSON string produced by language models or other sources that may not fully comply with JSON specifications.</td></tr><tr><td>remove_control_chars</td><td>Remove Control Characters</td><td>If set to True, this option removes control characters (ASCII characters 0-31 and 127) from the JSON string. This can help eliminate invisible characters that might cause parsing issues or make the JSON invalid.</td></tr><tr><td>normalize_unicode</td><td>Normalize Unicode</td><td>When enabled, this option normalizes Unicode characters in the JSON string to their canonical composition form (NFC). This ensures consistent representation of Unicode characters across different systems and prevents potential issues with character encoding.</td></tr><tr><td>validate_json</td><td>Validate JSON</td><td>If set to True, this option attempts to parse the JSON string to ensure it is well-formed before applying the final repair operation. It raises a ValueError if the JSON is invalid, allowing for early detection of major structural issues in the JSON.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-8">Outputs<a href="#outputs-8" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>output</td><td>Cleaned JSON String</td><td>The resulting cleaned, repaired, and validated JSON string that fully complies with the JSON specification.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="llm-router">LLM router<a href="#llm-router" class="hash-link" aria-label="Direct link to LLM router" title="Direct link to LLM router">​</a></h2>
<p>This component routes requests to the most appropriate LLM based on OpenRouter model specifications.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-9">Inputs<a href="#inputs-9" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>models</td><td>Language Models</td><td>List of LLMs to route between</td></tr><tr><td>input_value</td><td>Input</td><td>The input message to be routed</td></tr><tr><td>judge_llm</td><td>Judge LLM</td><td>LLM that will evaluate and select the most appropriate model</td></tr><tr><td>optimization</td><td>Optimization</td><td>Optimization preference (quality/speed/cost/balanced)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-9">Outputs<a href="#outputs-9" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>output</td><td>Output</td><td>The response from the selected model</td></tr><tr><td>selected_model</td><td>Selected Model</td><td>Name of the chosen model</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="message-to-data">Message to data<a href="#message-to-data" class="hash-link" aria-label="Direct link to Message to data" title="Direct link to Message to data">​</a></h2>
<p>This component converts <a href="/concepts-objects#message-object">Message</a> objects to <a href="/concepts-objects#data-object">Data</a> objects.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-10">Inputs<a href="#inputs-10" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>message</td><td>Message</td><td>The <a href="/concepts-objects#message-object">Message</a> object to convert to a <a href="/concepts-objects#data-object">Data</a> object.</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-10">Outputs<a href="#outputs-10" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>The converted <a href="/concepts-objects#data-object">Data</a> object.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="parse-dataframe">Parse DataFrame<a href="#parse-dataframe" class="hash-link" aria-label="Direct link to Parse DataFrame" title="Direct link to Parse DataFrame">​</a></h2>
<p>This component converts DataFrames into plain text using templates.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-11">Inputs<a href="#inputs-11" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>df</td><td>DataFrame</td><td>The DataFrame to convert to text rows</td></tr><tr><td>template</td><td>Template</td><td>Template for formatting (use <code>{column_name}</code> placeholders)</td></tr><tr><td>sep</td><td>Separator</td><td>String to join rows in output</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-11">Outputs<a href="#outputs-11" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>text</td><td>Text</td><td>All rows combined into single text</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="parse-json">Parse JSON<a href="#parse-json" class="hash-link" aria-label="Direct link to Parse JSON" title="Direct link to Parse JSON">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.1.3.</p></div></div>
<p>This component converts and extracts JSON fields using JQ queries.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-12">Inputs<a href="#inputs-12" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>input_value</td><td>Input</td><td>Data object to filter (<a href="/concepts-objects#message-object">Message</a> or <a href="/concepts-objects#data-object">Data</a>).</td></tr><tr><td>query</td><td>JQ Query</td><td>JQ Query to filter the data</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-12">Outputs<a href="#outputs-12" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>filtered_data</td><td>Filtered Data</td><td>Filtered data as list of <a href="/concepts-objects#data-object">Data</a> objects.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="select-data">Select data<a href="#select-data" class="hash-link" aria-label="Direct link to Select data" title="Direct link to Select data">​</a></h2>
<div class="theme-admonition theme-admonition-important admonition_xJq3 alert alert--info"><div class="admonitionHeading_Gvgb"><span class="admonitionIcon_Rf37"><svg viewBox="0 0 14 16"><path fill-rule="evenodd" d="M7 2.3c3.14 0 5.7 2.56 5.7 5.7s-2.56 5.7-5.7 5.7A5.71 5.71 0 0 1 1.3 8c0-3.14 2.56-5.7 5.7-5.7zM7 1C3.14 1 0 4.14 0 8s3.14 7 7 7 7-3.14 7-7-3.14-7-7-7zm1 3H6v5h2V4zm0 6H6v2h2v-2z"></path></svg></span>important</div><div class="admonitionContent_BuS1"><p>This component is in <strong>Legacy</strong>, which means it is no longer in active development as of Langflow version 1.1.3.</p></div></div>
<p>This component selects a single <a href="/concepts-objects#data-object">Data</a> item from a list.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-13">Inputs<a href="#inputs-13" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data_list</td><td>Data List</td><td>List of data to select from</td></tr><tr><td>data_index</td><td>Data Index</td><td>Index of the data to select</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-13">Outputs<a href="#outputs-13" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>selected_data</td><td>Selected Data</td><td>The selected <a href="/concepts-objects#data-object">Data</a> object.</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="split-text">Split text<a href="#split-text" class="hash-link" aria-label="Direct link to Split text" title="Direct link to Split text">​</a></h2>
<p>This component splits text into chunks based on specified criteria.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-14">Inputs<a href="#inputs-14" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data_inputs</td><td>Data Inputs</td><td>The data to split</td></tr><tr><td>chunk_overlap</td><td>Chunk Overlap</td><td>Number of characters to overlap between chunks</td></tr><tr><td>chunk_size</td><td>Chunk Size</td><td>Maximum number of characters in each chunk</td></tr><tr><td>separator</td><td>Separator</td><td>Character to split on (defaults to newline)</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-14">Outputs<a href="#outputs-14" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>chunks</td><td>Chunks</td><td>List of split text chunks as <a href="/concepts-objects#data-object">Data</a> objects.</td></tr><tr><td>dataframe</td><td>DataFrame</td><td>The chunks as a DataFrame</td></tr></tbody></table>
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="update-data">Update data<a href="#update-data" class="hash-link" aria-label="Direct link to Update data" title="Direct link to Update data">​</a></h2>
<p>This component dynamically updates or appends data with specified fields.</p>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="inputs-15">Inputs<a href="#inputs-15" class="hash-link" aria-label="Direct link to Inputs" title="Direct link to Inputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>old_data</td><td>Data</td><td>The records to update</td></tr><tr><td>number_of_fields</td><td>Number of Fields</td><td>Number of fields to add (max 15)</td></tr><tr><td>text_key</td><td>Text Key</td><td>Key for text content</td></tr><tr><td>text_key_validator</td><td>Text Key Validator</td><td>Validates text key presence</td></tr></tbody></table>
<h3 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="outputs-15">Outputs<a href="#outputs-15" class="hash-link" aria-label="Direct link to Outputs" title="Direct link to Outputs">​</a></h3>
<table><thead><tr><th>Name</th><th>Display Name</th><th>Info</th></tr></thead><tbody><tr><td>data</td><td>Data</td><td>Updated <a href="/concepts-objects#data-object">Data</a> objects.</td></tr></tbody></table></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/components-models"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Models</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/components-prompts"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Prompts</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#use-a-processing-component-in-a-flow" class="table-of-contents__link toc-highlight">Use a processing component in a flow</a></li><li><a href="#alter-metadata" class="table-of-contents__link toc-highlight">Alter metadata</a><ul><li><a href="#inputs" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#combine-text" class="table-of-contents__link toc-highlight">Combine text</a><ul><li><a href="#inputs-1" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-1" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#create-data" class="table-of-contents__link toc-highlight">Create data</a><ul><li><a href="#inputs-2" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-2" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#data-combiner" class="table-of-contents__link toc-highlight">Data combiner</a><ul><li><a href="#inputs-3" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-3" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#dataframe-operations" class="table-of-contents__link toc-highlight">DataFrame operations</a><ul><li><a href="#inputs-4" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-4" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#data-to-message" class="table-of-contents__link toc-highlight">Data to message</a><ul><li><a href="#inputs-5" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-5" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#filter-data" class="table-of-contents__link toc-highlight">Filter data</a><ul><li><a href="#inputs-6" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-6" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#filter-values" class="table-of-contents__link toc-highlight">Filter values</a><ul><li><a href="#inputs-7" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-7" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#json-cleaner" class="table-of-contents__link toc-highlight">JSON cleaner</a><ul><li><a href="#inputs-8" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-8" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#llm-router" class="table-of-contents__link toc-highlight">LLM router</a><ul><li><a href="#inputs-9" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-9" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#message-to-data" class="table-of-contents__link toc-highlight">Message to data</a><ul><li><a href="#inputs-10" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-10" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#parse-dataframe" class="table-of-contents__link toc-highlight">Parse DataFrame</a><ul><li><a href="#inputs-11" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-11" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#parse-json" class="table-of-contents__link toc-highlight">Parse JSON</a><ul><li><a href="#inputs-12" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-12" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#select-data" class="table-of-contents__link toc-highlight">Select data</a><ul><li><a href="#inputs-13" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-13" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#split-text" class="table-of-contents__link toc-highlight">Split text</a><ul><li><a href="#inputs-14" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-14" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li><li><a href="#update-data" class="table-of-contents__link toc-highlight">Update data</a><ul><li><a href="#inputs-15" class="table-of-contents__link toc-highlight">Inputs</a></li><li><a href="#outputs-15" class="table-of-contents__link toc-highlight">Outputs</a></li></ul></li></ul></div></div></div></div></main></div></div></div><div style="position:fixed;right:20px;bottom:20px;z-index:100;display:flex;align-items:center;gap:10px;cursor:pointer"><div style="background-color:#f6f6f6;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px rgba(0,0,0,0.1)"><img src="/img/langflow-icon-black-transparent.svg" style="width:40px" alt="Search"></div></div></div>
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