fast-xml-parser vs xmlbuilder vs xml2js vs @xmldom/xmldom vs libxmljs
XML Parsing and Building Libraries Comparison
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fast-xml-parserxmlbuilderxml2js@xmldom/xmldomlibxmljsSimilar Packages:
What's XML Parsing and Building Libraries?

These libraries are designed to facilitate XML parsing, manipulation, and generation in JavaScript applications. They provide developers with tools to read XML documents, convert them to JavaScript objects, and create XML structures programmatically. Each library has its own strengths, weaknesses, and use cases, catering to different needs in web development, such as performance, ease of use, and feature set.

Package Weekly Downloads Trend
Github Stars Ranking
Stat Detail
Package
Downloads
Stars
Size
Issues
Publish
License
fast-xml-parser38,020,265
2,886568 kB643 months agoMIT
xmlbuilder32,860,102
924-85 years agoMIT
xml2js23,765,424
4,9593.44 MB2472 years agoMIT
@xmldom/xmldom11,884,411
422183 kB4219 days agoMIT
libxmljs49,473
1,05517.7 MB702 years agoMIT
Feature Comparison: fast-xml-parser vs xmlbuilder vs xml2js vs @xmldom/xmldom vs libxmljs

Parsing Speed

  • fast-xml-parser:

    fast-xml-parser is optimized for performance, boasting a very fast parsing speed, making it ideal for applications that need to process large XML files quickly.

  • xmlbuilder:

    xmlbuilder does not parse XML but instead focuses on building XML documents, so speed is not a primary concern in this context.

  • xml2js:

    xml2js is relatively slower compared to fast-xml-parser but is still efficient for most use cases, especially when the focus is on ease of use rather than raw speed.

  • @xmldom/xmldom:

    @xmldom/xmldom provides a balance between speed and DOM compliance, making it suitable for applications that require efficient parsing without sacrificing the ability to manipulate the XML structure.

  • libxmljs:

    libxmljs offers competitive parsing speeds but is more focused on providing advanced features like XPath and validation, which may add some overhead compared to simpler parsers.

API Design

  • fast-xml-parser:

    fast-xml-parser features a simple and straightforward API that allows for quick parsing and conversion of XML to JavaScript objects, making it easy to use for developers of all skill levels.

  • xmlbuilder:

    xmlbuilder has a fluent API that allows for easy and intuitive XML document creation, making it ideal for developers who need to generate XML dynamically.

  • xml2js:

    xml2js offers a very user-friendly API that simplifies XML parsing and generation, making it accessible for beginners and those who prefer a minimalistic approach.

  • @xmldom/xmldom:

    @xmldom/xmldom follows a DOM-like API, which is familiar to developers who have worked with browser-based JavaScript. This makes it easier to manipulate XML documents using standard DOM methods.

  • libxmljs:

    libxmljs provides a rich API that supports advanced XML features, including XPath queries and schema validation, but may have a steeper learning curve due to its complexity.

Feature Set

  • fast-xml-parser:

    fast-xml-parser is lightweight and focuses primarily on parsing, lacking some advanced features like XPath support, making it less suitable for complex XML processing.

  • xmlbuilder:

    xmlbuilder specializes in creating XML documents and provides a robust set of features for building XML structures, but does not handle parsing.

  • xml2js:

    xml2js provides basic XML parsing and building features, focusing on simplicity rather than a wide range of advanced functionalities.

  • @xmldom/xmldom:

    @xmldom/xmldom supports a wide range of XML features, including namespaces and attributes, making it a versatile choice for various XML manipulation tasks.

  • libxmljs:

    libxmljs is feature-rich, supporting XPath, XSLT, and XML schema validation, making it the go-to choice for applications that require comprehensive XML capabilities.

Learning Curve

  • fast-xml-parser:

    fast-xml-parser is straightforward and easy to learn, making it suitable for developers who need quick XML parsing without a steep learning curve.

  • xmlbuilder:

    xmlbuilder is also easy to learn, especially for those who need to generate XML documents, thanks to its fluent API design.

  • xml2js:

    xml2js is very easy to learn and use, making it an excellent choice for beginners or those who want to quickly integrate XML handling into their projects.

  • @xmldom/xmldom:

    @xmldom/xmldom has a moderate learning curve, especially for those familiar with DOM manipulation in web development, making it relatively easy to pick up.

  • libxmljs:

    libxmljs has a steeper learning curve due to its advanced features and API complexity, which may require more time to master.

Use Cases

  • fast-xml-parser:

    fast-xml-parser is perfect for scenarios where performance is critical, such as parsing large XML data streams or files in real-time applications.

  • xmlbuilder:

    xmlbuilder is used in scenarios where XML documents need to be generated dynamically, such as creating configuration files or generating XML responses for web services.

  • xml2js:

    xml2js is great for applications that need to convert XML to JavaScript objects for easier manipulation, such as REST APIs that consume XML data.

  • @xmldom/xmldom:

    @xmldom/xmldom is ideal for applications that need to manipulate XML in a way similar to how HTML is handled in the browser, making it suitable for web applications that interact with XML data.

  • libxmljs:

    libxmljs is best for applications that require complex XML processing, such as data transformation and validation, making it suitable for backend services that handle XML data.

How to Choose: fast-xml-parser vs xmlbuilder vs xml2js vs @xmldom/xmldom vs libxmljs
  • fast-xml-parser:

    Select fast-xml-parser for its speed and lightweight nature, especially if performance is a critical factor. It's suitable for applications that need quick parsing without the overhead of a full DOM implementation.

  • xmlbuilder:

    Choose xmlbuilder when you need to create XML documents programmatically. It offers a fluent API for building XML structures, making it ideal for applications that generate XML output dynamically.

  • xml2js:

    Use xml2js for its simplicity and ease of use, particularly for converting XML to JavaScript objects and vice versa. It's a great choice for projects that need straightforward XML handling without deep XML manipulation requirements.

  • @xmldom/xmldom:

    Choose @xmldom/xmldom if you need a DOM-compliant XML parser that can handle large XML files and provides a familiar DOM API for manipulation. It's ideal for projects that require compatibility with browser-based DOM methods.

  • libxmljs:

    Opt for libxmljs if you require advanced XML features, such as XPath support and validation against XML schemas. This library is best for complex XML processing tasks where performance and compliance with XML standards are essential.

Similar Npm Packages to fast-xml-parser

fast-xml-parser is a lightweight and efficient XML parser for JavaScript and Node.js applications. It allows developers to quickly convert XML data into JavaScript objects, making it easier to manipulate and work with XML data in a more familiar format. With its focus on performance and ease of use, fast-xml-parser is a popular choice for projects that require XML parsing capabilities. However, there are several alternatives available that also provide XML parsing functionalities. Here are a few notable ones:

  • xml-js is a library that converts XML to JavaScript objects and vice versa. It provides a straightforward API for parsing XML and serializing JavaScript objects back into XML format. xml-js is particularly useful for projects that require bidirectional conversion between XML and JavaScript, making it a versatile choice for developers who need to handle both parsing and serialization.
  • xml-parser is a simple and efficient XML parser that focuses on providing a minimalistic approach to parsing XML data. It converts XML into a JavaScript object and is designed for ease of use, making it a good option for developers who need a straightforward solution without the overhead of additional features. If you are looking for a lightweight parser that gets the job done without any frills, xml-parser is a solid choice.
  • xml2js is a widely used XML to JavaScript object converter that offers a rich set of features. It provides options for customizing the parsing process, including handling attributes, preserving namespaces, and more. xml2js is suitable for projects that require more control over the parsing process and need to handle complex XML structures. Its flexibility makes it a popular choice among developers working with XML data.

To see how fast-xml-parser compares with xml-js, xml-parser, and xml2js, check out the comparison: Comparing fast-xml-parser vs xml-js vs xml-parser vs xml2js.

Similar Npm Packages to xmlbuilder

xmlbuilder is a popular npm package that allows developers to create XML documents in a simple and intuitive way. It provides a straightforward API for building XML structures programmatically, making it easier to generate XML data for various applications, such as web services, configuration files, or data interchange formats. With xmlbuilder, you can create complex XML documents with minimal effort, ensuring that your XML output is well-formed and adheres to the required specifications.

While xmlbuilder is a powerful tool for generating XML, there are several alternatives available that cater to different needs and preferences:

  • fast-xml-parser is a fast and lightweight XML parser that can also convert XML to JSON and vice versa. It is designed for high performance and efficiency, making it suitable for applications that require quick parsing and serialization of XML data. If you need a library that focuses on speed and offers both parsing and building capabilities, fast-xml-parser is an excellent choice.
  • libxmljs is a powerful library that provides a comprehensive set of features for working with XML documents. It is built on top of the libxml2 C library, offering robust parsing, validation, and manipulation capabilities. If your project requires advanced XML processing features, such as XPath queries or XML schema validation, libxmljs is a strong contender.
  • xml2js is another popular library for parsing XML into JavaScript objects and vice versa. It is known for its simplicity and ease of use, making it a great option for developers who want to quickly convert XML data to JSON format. If you primarily need to parse XML and convert it to a more manageable format, xml2js is a solid choice.
  • xmlbuilder2 is a modern alternative to xmlbuilder that offers a more flexible and feature-rich API for building XML documents. It supports various XML features, such as namespaces and attributes, and is designed to be more extensible. If you are looking for a more advanced and customizable XML building solution, xmlbuilder2 might be the right fit.

To compare these packages and see how they stack up against each other, check out the following link: Comparing fast-xml-parser vs libxmljs vs xml2js vs xmlbuilder vs xmlbuilder2.

Similar Npm Packages to xml2js

xml2js is a popular Node.js library that allows developers to parse XML into JavaScript objects and vice versa. It provides a simple and straightforward API for converting XML data into a more manageable format, making it easier to work with in JavaScript applications. While xml2js is widely used, there are other libraries available that offer similar functionality. Here are a few alternatives:

  • fast-xml-parser is a high-performance XML parser that is designed to be fast and lightweight. It provides a simple API for parsing XML into JavaScript objects and can handle large XML files efficiently. One of the standout features of fast-xml-parser is its ability to validate XML against a schema, which can be beneficial for ensuring data integrity. If performance is a critical factor in your application and you need a parser that can handle large datasets quickly, fast-xml-parser is an excellent choice.
  • xml-js is another library that converts XML to JavaScript objects and vice versa. It focuses on simplicity and ease of use, providing a clear API for developers. xml-js supports various options for customizing the conversion process, allowing you to tailor the output to your specific needs. If you are looking for a straightforward solution for XML parsing without the need for advanced features, xml-js is a solid option.

To see how xml2js compares with fast-xml-parser and xml-js, check out the comparison: Comparing fast-xml-parser vs xml-js vs xml2js.

Similar Npm Packages to @xmldom/xmldom

@xmldom/xmldom is a JavaScript library that provides a DOM implementation for XML documents. It allows developers to parse, manipulate, and serialize XML data in a way that is similar to how the DOM works in web browsers. This makes it easier to work with XML in Node.js and other JavaScript environments. While @xmldom/xmldom is a robust choice for XML handling, there are several alternatives that offer different features and capabilities. Here are a few notable options:

  • fast-xml-parser is a high-performance XML parser that is designed for speed and efficiency. It can parse XML strings into JavaScript objects and also supports converting JavaScript objects back into XML. fast-xml-parser is particularly useful when performance is a critical factor, as it is optimized for speed and can handle large XML files effectively. Additionally, it offers features like validation against a schema and support for XPath queries, making it a versatile choice for XML processing.

  • libxmljs is a powerful library that provides a binding to the libxml2 library, which is known for its performance and feature-rich capabilities. libxmljs supports both XML parsing and manipulation, as well as XPath and XSLT. If you need advanced XML processing features, such as validation against XML Schema or XSLT transformations, libxmljs is an excellent choice. However, it may require additional setup and dependencies compared to other libraries.

  • xml2js is a simple and easy-to-use library for converting XML to JavaScript objects and vice versa. It is particularly well-suited for projects where ease of use and simplicity are prioritized. xml2js allows developers to quickly parse XML data and work with it as JavaScript objects, making it a great option for straightforward XML handling tasks. However, it may not be as performant as some of the other libraries for very large XML files.

  • xmlbuilder is a library focused on creating XML documents programmatically. It provides a simple and intuitive API for building XML structures in JavaScript, making it easy to generate XML from scratch. If your project involves generating XML rather than parsing it, xmlbuilder is a great choice. Its fluent interface allows for easy construction of complex XML documents without the need for manual string concatenation.

To explore how @xmldom/xmldom compares with these alternatives, check out the comparison: Comparing @xmldom/xmldom vs fast-xml-parser vs libxmljs vs xml2js vs xmlbuilder.

Similar Npm Packages to libxmljs

libxmljs is a powerful XML parsing and manipulation library for Node.js. It provides a comprehensive set of features for working with XML documents, including parsing, validation, and XPath support. With its C++ bindings, libxmljs is known for its performance and efficiency, making it a popular choice for applications that require robust XML processing capabilities. However, there are several alternatives available in the Node.js ecosystem that also provide XML parsing and manipulation functionalities. Here are a few notable ones:

  • fast-xml-parser is a lightweight and fast XML parser that is designed to be simple and efficient. It supports both XML to JSON conversion and JSON to XML conversion, making it versatile for various use cases. fast-xml-parser is particularly useful when performance is a priority, as it is optimized for speed and can handle large XML files with ease. If you need a quick and efficient solution for parsing XML without the overhead of more complex libraries, fast-xml-parser is an excellent choice.
  • libxmljs2 is a fork of the original libxmljs library, designed to provide improved performance and compatibility with modern Node.js versions. It retains many of the features of libxmljs, such as XPath support and validation, while also addressing some of the limitations of its predecessor. If you are looking for a more up-to-date version of libxmljs with similar capabilities, libxmljs2 is worth considering.
  • sax is a streaming XML parser that is designed for performance and low memory usage. Unlike other libraries that load the entire XML document into memory, sax parses XML in a streaming fashion, making it suitable for processing large XML files. If you need to handle XML data in a memory-efficient way and are comfortable working with event-driven programming, sax is a great option.
  • xml2js is a simple and easy-to-use XML to JavaScript object converter. It allows you to parse XML documents into JavaScript objects and vice versa. xml2js is particularly useful for applications that require straightforward XML parsing without the need for advanced features like XPath. If you are looking for a library that simplifies XML handling in a user-friendly manner, xml2js is a solid choice.
  • xmlbuilder is a library for building XML documents in a programmatic way. It provides a simple API for creating XML structures, making it easy to generate XML from JavaScript objects. If your application requires generating XML rather than just parsing it, xmlbuilder is a great tool to have in your toolkit.
  • xmldom is a DOM implementation for XML documents in JavaScript. It allows you to parse XML into a DOM structure, enabling you to manipulate XML documents using standard DOM methods. If you prefer working with XML in a DOM-like manner and need to perform complex manipulations, xmldom is a suitable option.

To explore how these packages compare, visit: Comparing fast-xml-parser vs libxmljs vs libxmljs2 vs sax vs xml2js vs xmlbuilder vs xmldom.

README for fast-xml-parser

fast-xml-parser

NPM total downloads

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

FXP logo
  • Validate XML data syntactically. Use detailed-xml-validator to verify business rules.
  • Parse XML to JS Objectand vice versa
  • Common JS, ESM, and browser compatible
  • Faster than any other pure JS implementation.

It can handle big files (tested up to 100mb). XML Entities, HTML entities, and DOCTYPE entites are supported. Unpaired tags (Eg <br> in HTML), stop nodes (Eg <script> in HTML) are supported. It can also preserve Order of tags in JS object

Your Support, Our Motivation

Try out our New Thoughts

We've recently launched Flowgger Flowgger Logging Framework

Don't forget to check our new library Text2Chart that constructs flow chart out of simple text. Very helpful in creating or alayzing an algorithm, and documentation purpose.

Financial Support

Sponsor this project

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fxp_sponsors

This is a donation. No goods or services are expected in return. Any requests for refunds for those purposes will be rejected.

Users

more

The list of users are mostly published by Github or communicated directly. Feel free to contact if you find any information wrong.

More about this library

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

Example

As CLI command

$ fxparser some.xml

In a node js project

const { XMLParser, XMLBuilder, XMLValidator} = require("fast-xml-parser");

const parser = new XMLParser();
let jObj = parser.parse(XMLdata);

const builder = new XMLBuilder();
const xmlContent = builder.build(jObj);

In a HTML page

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

Bundle size

| Bundle Name | Size | | ------------------ | ---- | | fxbuilder.min.js | 6.5K | | fxparser.min.js | 20K | | fxp.min.js | 26K | | fxvalidator.min.js | 5.7K |

Documents

v3v4 and v5v6
documents
  1. Getting Started
  2. XML Parser
  3. XML Builder
  4. XML Validator
  5. Entities
  6. HTML Document Parsing
  7. PI Tag processing
  1. Getting Started
  2. Features
  3. Options
  4. Output Builders
  5. Value Parsers

note:

  • Version 6 is released with version 4 for experimental use. Based on it's demand, it'll be developed and the features can be different in final release.
  • Version 5 has the same functionalities as version 4.

Performance

negative means error

XML Parser

  • Y-axis: requests per second
  • X-axis: File size

XML Builder

* Y-axis: requests per second

Usage Trend

Usage Trend of fast-xml-parser

NPM Usage Trend of fast-xml-parser

Supporters

Contributors

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

Backers from Open collective

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

License

  • MIT License

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