!function(){function t(t){document.documentElement.setAttribute("data-theme",t)}var e=function(){var t=null;try{t=new URLSearchParams(window.location.search).get("docusaurus-theme")}catch(t){}return t}()||function(){var t=null;try{t=localStorage.getItem("theme")}catch(t){}return t}();t(null!==e?e:"light")}(),document.documentElement.setAttribute("data-announcement-bar-initially-dismissed",function(){try{return"true"===localStorage.getItem("docusaurus.announcement.dismiss")}catch(t){}return!1}())

[Skip to main content](#__docusaurus_skipToContent_fallback)

LangChain v0.2 is coming soon! Preview the new docs [here](/v0.2/docs/introduction/).

[

![🦜️🔗 Langchain](/v0.1/img/brand/wordmark.png)![🦜️🔗 Langchain](/v0.1/img/brand/wordmark-dark.png)

](/v0.1/)[Docs](/v0.1/docs/get_started/introduction/)[Use cases](/v0.1/docs/use_cases/)[Integrations](/v0.1/docs/integrations/platforms/)[API Reference](https://api.js.langchain.com)

[More](#)

*   [People](/v0.1/docs/people/)
*   [Community](/v0.1/docs/community/)
*   [Tutorials](/v0.1/docs/additional_resources/tutorials/)
*   [Contributing](/v0.1/docs/contributing/)

[v0.1](#)

*   [v0.2](https://js.langchain.com/v0.2/docs/introduction)
*   [v0.1](/v0.1/docs/get_started/introduction/)

[🦜🔗](#)

*   [LangSmith](https://smith.langchain.com)
*   [LangSmith Docs](https://docs.smith.langchain.com)
*   [LangChain Hub](https://smith.langchain.com/hub)
*   [LangServe](https://github.com/langchain-ai/langserve)
*   [Python Docs](https://python.langchain.com/)

[Chat](https://chatjs.langchain.com)[](https://github.com/langchain-ai/langchainjs)

Search

*   [Providers](/v0.1/docs/integrations/platforms/)
    
    *   [Providers](/v0.1/docs/integrations/platforms/)
    *   [Anthropic](/v0.1/docs/integrations/platforms/anthropic/)
    *   [AWS](/v0.1/docs/integrations/platforms/aws/)
    *   [Google](/v0.1/docs/integrations/platforms/google/)
    *   [Microsoft](/v0.1/docs/integrations/platforms/microsoft/)
    *   [OpenAI](/v0.1/docs/integrations/platforms/openai/)
*   [Components](/v0.1/docs/integrations/components/)
    
    *   [LLMs](/v0.1/docs/integrations/llms/)
        
    *   [Chat models](/v0.1/docs/integrations/chat/)
        
    *   [Document loaders](/v0.1/docs/integrations/document_loaders/)
        
        *   [File Loaders](/v0.1/docs/integrations/document_loaders/file_loaders/)
            
            *   [Folders with multiple files](/v0.1/docs/integrations/document_loaders/file_loaders/directory/)
            *   [ChatGPT files](/v0.1/docs/integrations/document_loaders/file_loaders/chatgpt/)
            *   [CSV files](/v0.1/docs/integrations/document_loaders/file_loaders/csv/)
            *   [Docx files](/v0.1/docs/integrations/document_loaders/file_loaders/docx/)
            *   [EPUB files](/v0.1/docs/integrations/document_loaders/file_loaders/epub/)
            *   [JSON files](/v0.1/docs/integrations/document_loaders/file_loaders/json/)
            *   [JSONLines files](/v0.1/docs/integrations/document_loaders/file_loaders/jsonlines/)
            *   [Notion markdown export](/v0.1/docs/integrations/document_loaders/file_loaders/notion_markdown/)
            *   [Open AI Whisper Audio](/v0.1/docs/integrations/document_loaders/file_loaders/openai_whisper_audio/)
            *   [PDF files](/v0.1/docs/integrations/document_loaders/file_loaders/pdf/)
            *   [PPTX files](/v0.1/docs/integrations/document_loaders/file_loaders/pptx/)
            *   [Subtitles](/v0.1/docs/integrations/document_loaders/file_loaders/subtitles/)
            *   [Text files](/v0.1/docs/integrations/document_loaders/file_loaders/text/)
            *   [Unstructured](/v0.1/docs/integrations/document_loaders/file_loaders/unstructured/)
        *   [Web Loaders](/v0.1/docs/integrations/document_loaders/web_loaders/)
            
    *   [Document transformers](/v0.1/docs/integrations/document_transformers/)
        
    *   [Document compressors](/v0.1/docs/integrations/document_compressors/)
        
    *   [Text embedding models](/v0.1/docs/integrations/text_embedding/)
        
    *   [Vector stores](/v0.1/docs/integrations/vectorstores/)
        
    *   [Retrievers](/v0.1/docs/integrations/retrievers/)
        
    *   [Tools](/v0.1/docs/integrations/tools/)
        
    *   [Agents and toolkits](/v0.1/docs/integrations/toolkits/)
        
    *   [Chat Memory](/v0.1/docs/integrations/chat_memory/)
        
    *   [Stores](/v0.1/docs/integrations/stores/)
        

*   [](/v0.1/)
*   [Components](/v0.1/docs/integrations/components/)
*   [Document loaders](/v0.1/docs/integrations/document_loaders/)
*   [File Loaders](/v0.1/docs/integrations/document_loaders/file_loaders/)
*   JSONLines files

JSONLines files
===============

This example goes over how to load data from JSONLines or JSONL files. The second argument is a JSONPointer to the property to extract from each JSON object in the file. One document will be created for each JSON object in the file.

Example JSONLines file:

    {"html": "This is a sentence."}{"html": "This is another sentence."}

Example code:

    import { JSONLinesLoader } from "langchain/document_loaders/fs/json";const loader = new JSONLinesLoader(  "src/document_loaders/example_data/example.jsonl",  "/html");const docs = await loader.load();/*[  Document {    "metadata": {      "blobType": "application/jsonl+json",      "line": 1,      "source": "blob",    },    "pageContent": "This is a sentence.",  },  Document {    "metadata": {      "blobType": "application/jsonl+json",      "line": 2,      "source": "blob",    },    "pageContent": "This is another sentence.",  },]*/

* * *

#### Help us out by providing feedback on this documentation page:

[

Previous

JSON files

](/v0.1/docs/integrations/document_loaders/file_loaders/json/)[

Next

Notion markdown export

](/v0.1/docs/integrations/document_loaders/file_loaders/notion_markdown/)

Community

*   [Discord](https://discord.gg/cU2adEyC7w)
*   [Twitter](https://twitter.com/LangChainAI)

GitHub

*   [Python](https://github.com/langchain-ai/langchain)
*   [JS/TS](https://github.com/langchain-ai/langchainjs)

More

*   [Homepage](https://langchain.com)
*   [Blog](https://blog.langchain.dev)

Copyright © 2024 LangChain, Inc.