fast-xml-parser 3.21.0

Validate XML or Parse XML to JS/JSON very fast without C/C++ based libraries

fast-xml-parser@3.21.0 was published on 2021-10-25. Its manifest declares 2 runtime dependencies and 0 peer requirements. Type declarations are bundled according to the package metadata. No Node.js engine requirement is declared in this manifest.

All fast-xml-parser versions · Permanent reference to 3.21.0 · Latest release

Package specifications

Version3.21.0
License declarationMIT
Published2021-10-25T02:23:37.549Z
Node.js requirementNot declared
Type declarationsBundled declarations
Runtime dependency count2
Peer requirement count0
Optional dependency count0
Minified sizeMeasurement not available yet
Minified + gzipMeasurement not available yet
Unpacked distribution size77.65 KiB
Published file count15
Package typeNot declared
ES module entryNot declared
Default entry./src/parser.js
Side effects declarationNot declared
Direct advisories2
Resolved graph dependencies141
Repository stars3138
Repository forks400

Install fast-xml-parser 3.21.0

npm install fast-xml-parser@3.21.0
pnpm add fast-xml-parser@3.21.0
yarn add fast-xml-parser@3.21.0

Runtime dependencies

Peer requirements

  • None declared

Optional dependencies

  • None declared

Resolved dependency graph

This deps.dev graph describes a generic 64-bit Linux environment, not your application lockfile.

How to interpret the specifications

Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.

Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.

Known direct advisories

OpenSSF repository checks

Provider assessment: 2026-08-24T00:00:00Z. These are repository checks, not a jsL maintenance score.

Security-Policy10/10 — security policy file detected
Dangerous-Workflow10/10 — no dangerous workflow patterns detected
Maintained10/10 — 30 commit(s) and 3 issue activity found in the last 90 days -- score normalized to 10
Code-Review2/10 — Found 5/25 approved changesets -- score normalized to 2
Binary-Artifacts10/10 — no binaries found in the repo
Token-Permissions10/10 — GitHub workflow tokens follow principle of least privilege
CII-Best-Practices0/10 — no effort to earn an OpenSSF best practices badge detected
License10/10 — license file detected
Fuzzing10/10 — project is fuzzed
Packaging10/10 — packaging workflow detected
Pinned-Dependencies8/10 — dependency not pinned by hash detected -- score normalized to 8
SAST9/10 — SAST tool detected but not run on all commits

Evidence and freshness