Notable Pottery Manufacturer

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    4.0.10 • Public • Published


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    Validate XML, Parse XML to JS Object, or Build XML from JS Object without C/C++ based libraries and no callback.

    Looking for maintainers

    Stubmatic donate button

    Check ThankYouBackers for our contributors


    Check the list of all known users here;

    The list of users is collected either from the list published by Github, cummunicated directly through mails/chat , or from other resources. If you feel that your name in the above list is incorrectly published or you're not the user of this library anymore then you can inform us to remove it. We'll do the necessary changes ASAP.

    Main Features

    FXP logo

    • Validate XML data syntactically
    • Parse XML to JS Object
    • Build XML from JS Object
    • Works with node packages, in browser, and in CLI (press try me button above for demo)
    • Faster than any other pure JS implementation.
    • It can handle big files (tested up to 100mb).
    • Controlled parsing using various options
    • XML Entities, HTML entities, and DOCTYPE entites are supported.
    • unpaired tags (Eg <br> in HTML), stop nodes (Eg <script> in HTML) are supported.
    • You can restore almost same XML from JSON
    • Supports comments
    • It can preserve Order of tags in JS object
    • You can control if a single tag should be parsed into array.
    • Supports parsing of PI (Processing Instruction) tags with XML declaration tags
    • And many more other features.

    How to use

    To use as package dependency $ npm install fast-xml-parser or $ yarn add fast-xml-parser

    To use as system command $ npm install fast-xml-parser -g

    To use it on a webpage include it from a CDN


    As CLI command

    $ fxparser some.xml

    In a node js project

    const { XMLParser, XMLBuilder, XMLValidator} = require("../src/fxp");
    const parser = new XMLParser();
    let jObj = parser.parse(XMLdata);
    const builder = new XMLBuilder();
    const xmlContent =;

    In a HTML page

    <script src="path/to/fxp.min.js"></script>
      const parser = new fxparser.XMLParser();

    Check lib folder for different browser bundles

    Bundle Name Size
    fxbuilder.min.js 5.2K
    fxparser.js 50K
    fxparser.min.js 17K
    fxp.min.js 22K
    fxvalidator.min.js 5.7K




    2. XML Parser
    3. XML Builder
    4. XML Validator
    5. Entities
    6. HTML Document Parsing
    7. PI Tag processing


    XML Parser

    Large files

    XML Builder

    negative means error

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      • Run tests only for a particular User Story
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      • Central dashboard for better monitoring
      • Options to integrate E2E tests with Jira, Github etc using Central dashboard Tian.
    • Stubmatic : Create fake webservices, DynamoDB or S3 servers, Manage fake/mock stub data, Or fake any HTTP(s) call.



    This project exists thanks to all the people who contribute. [Contribute].


    Thank you to all our backers! 🙏 [Become a backer]


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    • MIT License

    Donate $5


    npm i fast-xml-parser

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    Unpacked Size

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    • amitgupta