fast-xml-parser vs xml-js vs xml2json
XML Parsing Libraries Comparison
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What's XML Parsing Libraries?

XML parsing libraries are tools that allow developers to convert XML data into a format that can be easily manipulated within JavaScript applications. These libraries provide functionalities to parse XML strings into JavaScript objects, enabling easier data handling and integration with web applications. They are essential for applications that need to interact with XML-based APIs or handle XML data formats, ensuring that developers can work with XML efficiently and effectively.

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fast-xml-parser33,472,1722,810568 kB5911 days agoMIT
xml-js2,950,3211,322-1246 years agoMIT
xml2json82,699811-555 years agoMIT
Feature Comparison: fast-xml-parser vs xml-js vs xml2json

Performance

  • fast-xml-parser:

    fast-xml-parser is designed for high performance and can parse large XML documents quickly. It minimizes memory usage and optimizes parsing speed, making it suitable for applications that require fast processing of XML data.

  • xml-js:

    xml-js offers a balanced performance, but it may not be as fast as fast-xml-parser for very large XML files. However, it provides a good compromise between speed and the ability to maintain the structure of the XML during conversion.

  • xml2json:

    xml2json is generally slower than the other two libraries, especially with larger XML files. However, it is still efficient for most use cases and is well-optimized for standard XML parsing tasks.

Ease of Use

  • fast-xml-parser:

    fast-xml-parser has a simple and intuitive API that makes it easy to get started. It requires minimal configuration and provides clear documentation, making it accessible for developers of all skill levels.

  • xml-js:

    xml-js is user-friendly and straightforward to use, with clear methods for converting XML to JSON and vice versa. Its API is designed to be easy to understand, which helps reduce the learning curve for new users.

  • xml2json:

    xml2json is also easy to use, with a clear and concise API. It is well-documented, which aids developers in quickly implementing XML parsing in their applications.

Customization

  • fast-xml-parser:

    fast-xml-parser allows for various customization options during parsing, including the ability to define how attributes and text nodes are handled. This flexibility makes it suitable for applications with specific requirements regarding XML structure.

  • xml-js:

    xml-js provides options for customizing the output format, allowing developers to choose how they want their JSON to be structured. This is particularly useful when dealing with complex XML documents that require specific handling.

  • xml2json:

    xml2json offers limited customization compared to the other two libraries. It primarily focuses on straightforward conversion, which may not suit all use cases where specific output formats are needed.

Error Handling

  • fast-xml-parser:

    fast-xml-parser includes robust error handling capabilities, providing clear error messages when parsing fails. This feature is crucial for debugging and ensuring data integrity during XML processing.

  • xml-js:

    xml-js has basic error handling, but it may not provide as detailed feedback as fast-xml-parser. It is still sufficient for most use cases, but developers should be aware of potential limitations.

  • xml2json:

    xml2json offers basic error handling, which may not be as comprehensive as the other libraries. Developers might need to implement additional checks to ensure XML validity before parsing.

Community and Support

  • fast-xml-parser:

    fast-xml-parser has a growing community and active maintenance, ensuring that developers can find support and updates regularly. Its popularity is increasing due to its performance benefits.

  • xml-js:

    xml-js has a stable user base and is well-maintained, providing good community support. It is widely used in various projects, which helps in finding solutions to common issues.

  • xml2json:

    xml2json is a well-established library with a long history in the JavaScript ecosystem. It has a large community and extensive documentation, making it easy to find help and resources.

How to Choose: fast-xml-parser vs xml-js vs xml2json
  • fast-xml-parser:

    Choose fast-xml-parser if you need a lightweight and high-performance solution that can handle large XML files quickly. It is particularly useful for applications where speed is critical, and it offers a simple API for converting XML to JSON and vice versa.

  • xml-js:

    Select xml-js if you require a library that provides a straightforward conversion between XML and JSON with a focus on maintaining the structure of the original XML. It is suitable for projects where preserving the original XML format is important, and it offers options for customizing the output.

  • xml2json:

    Opt for xml2json if you are looking for a well-established library that is easy to use and integrates seamlessly with existing JavaScript code. It is ideal for projects that need a reliable and robust solution for converting XML to JSON, especially when dealing with standard XML structures.

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 xml-js

xml-js is a popular npm package that provides a simple and efficient way to convert XML data to JavaScript objects and vice versa. This library is particularly useful for developers who need to work with XML data in their applications, allowing for easy manipulation and access to the data structure. With its straightforward API, xml-js can be integrated seamlessly into various JavaScript projects, making it a go-to choice for XML parsing and serialization.

While xml-js is a solid option for XML processing, there are other libraries that offer similar functionality. Here are a couple of alternatives:

  • fast-xml-parser is a lightweight and fast XML parser that focuses on performance. It is designed to handle large XML files efficiently and provides a simple API for converting XML to JSON and vice versa. fast-xml-parser supports various features such as attribute parsing, tag name conversion, and customizable options, making it a versatile choice for developers looking for speed and flexibility in XML processing.
  • xml2js is another widely used library for parsing XML into JavaScript objects. It offers a straightforward API and is known for its ease of use. xml2js allows for customizable parsing options, enabling developers to tailor the conversion process to their specific needs. It is a great choice for those who require a reliable and well-established library for XML parsing in their applications.

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

Similar Npm Packages to xml2json

xml2json is a popular npm package that allows developers to convert XML data into JSON format. This conversion is essential for web applications that need to process XML data more easily, as JSON is often more manageable and compatible with JavaScript. While xml2json is a solid choice for XML to JSON conversion, there are several alternatives available that offer different features and capabilities. Here are a few noteworthy options:

  • fast-xml-parser is a high-performance XML parser that can convert XML to JSON and vice versa. It is designed for speed and efficiency, making it suitable for applications that require quick parsing of large XML files. Fast-xml-parser supports various features such as attribute parsing, tag value extraction, and customizable parsing options, making it a versatile choice for developers who need robust XML handling capabilities.

  • libxmljs is a powerful library for parsing XML and HTML documents. It provides a comprehensive API for manipulating XML data and supports XPath queries, making it a great choice for applications that require complex XML processing. While libxmljs is more heavyweight compared to other options, its extensive features make it suitable for projects that need advanced XML manipulation and querying capabilities.

  • xml-js is a simple and straightforward library for converting XML to JSON and vice versa. It focuses on ease of use and provides a clean API for developers who want to quickly convert XML data without dealing with complex configurations. Xml-js is a great option for smaller projects or for developers who need a lightweight solution for basic XML to JSON conversions.

  • xml2js is another widely used library for converting XML to JSON. It offers a simple API and supports various parsing options, allowing developers to customize the output JSON structure. Xml2js is particularly useful for projects that require flexibility in how XML data is represented in JSON format.

To see how xml2json compares with fast-xml-parser, libxmljs, xml-js, and xml2js, check out the comparison: Comparing fast-xml-parser vs libxmljs vs xml-js vs xml2js vs xml2json.

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

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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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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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