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11 KiB
fast-xml-parser
Validate XML, Parse XML to JS Object, or Build XML from JS Object without C/C++ based libraries and no callback.
- Validate XML data syntactically. Use detailed-xml-validator to verify business rules.
- Parse XML to JS Objects and 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
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Financial Support
Sponsor this project
This is a donation. No goods or services are expected in return. Any requests for refunds for those purposes will be rejected.
Users
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
| v3 | v4 and v5 | v6 |
| documents |
note:
- Version 6 is released with version 4 for experimental use. Based on its 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
Supporters
Contributors
This project exists thanks to all the people who contribute. [Contribute].
Backers from Open collective
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License
- MIT License



