NaturalIntelligence/fast-xml-parser

Health v2 · maintenance only

Adoption not part of the score

3135 stars · 389 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A pure JavaScript library for rapidly validating XML, parsing XML to JS objects, and building XML from JS objects, with no C/C++ dependencies or callbacks. It works in Node.js and browsers, handles large files, and also ships a CLI.

Use cases

• convert xml to in node
• parse xml feeds into javascript objects
• build xml from data
• validate xml syntax without native dependencies
• parse large xml files in the browser
• convert xml to from the command line

When to choose

• you need fast XML parsing/conversion in pure JS with no native builds
• you target both Node.js and browser environments
• you need to handle large XML files (up to ~100MB) or entities, unpaired tags, and CDATA

When to avoid

• you need schema (XSD) validation or business-rule validation - use a dedicated validator
• you need streaming SAX-style parsing with fine-grained event control
• you need full DOM or XPath support

Facets

library · maturity stable

parser serialization cli developer-tools parsers web-development developer-tools files browser cross-platform cli xml xml2 2xml xml-validator pure-javascript no-native-dependencies nodejs

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