proj4

Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.

proj4@2.22.0 was published on 2026-08-31. Its manifest declares 2 runtime dependencies and 1 peer requirement. Type declarations are bundled according to the package metadata. No Node.js engine requirement is declared in this manifest.

All proj4 versions · Permanent reference to 2.22.0

Package specifications

Version2.22.0
License declarationMIT
Published2026-08-31T07:27:26.264Z
Node.js requirementNot declared
Type declarationsBundled declarations
Runtime dependency count2
Peer requirement count1
Optional dependency count0
Minified size126.86 KiB
Minified + gzip41.99 KiB
Unpacked distribution size824.97 KiB
Published file count223
Package typeNot declared
ES module entrylib/index.js
Default entrydist/proj4-src.js
Side effects declarationNot declared
Direct advisories0
Resolved graph dependencies2
Repository stars2244
Repository forks357

Install proj4 2.22.0

npm install proj4@2.22.0
pnpm add proj4@2.22.0
yarn add proj4@2.22.0

Runtime dependencies

Peer requirements

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.

OpenSSF repository checks

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

Dangerous-Workflow10/10 — no dangerous workflow patterns detected
Maintained10/10 — 30 commit(s) and 6 issue activity found in the last 90 days -- score normalized to 10
Code-Review5/10 — Found 7/12 approved changesets -- score normalized to 5
Security-Policy10/10 — security policy file detected
CII-Best-Practices0/10 — no effort to earn an OpenSSF best practices badge detected
Binary-Artifacts10/10 — no binaries found in the repo
Token-Permissions0/10 — detected GitHub workflow tokens with excessive permissions
Pinned-Dependencies5/10 — dependency not pinned by hash detected -- score normalized to 5
License9/10 — license file detected
Fuzzing0/10 — project is not fuzzed
Signed-Releases0/10 — Project has not signed or included provenance with any releases.
Packaging10/10 — packaging workflow detected
SAST0/10 — SAST tool is not run on all commits -- score normalized to 0

Evidence and freshness