express 4.9.0

Fast, unopinionated, minimalist web framework

express@4.9.0 was published on 2014-09-09. Its manifest declares 24 runtime dependencies and 0 peer requirements. Bundled type declarations are not declared in the inspected metadata. The declared Node.js requirement is >= 0.10.0.

All express versions · Permanent reference to 4.9.0 · Latest release

Package specifications

Version4.9.0
License declarationMIT
Published2014-09-09T04:33:18.960Z
Node.js requirement>= 0.10.0
Type declarationsNot declared
Runtime dependency count24
Peer requirement count0
Optional dependency count0
Minified sizeMeasurement not available yet
Minified + gzipMeasurement not available yet
Unpacked distribution sizeNot supplied
Published file countNot supplied
Package typeNot declared
ES module entryNot declared
Default entryNot declared
Side effects declarationNot declared
Direct advisories2
Resolved graph dependencies40
Repository stars69575
Repository forks25253

Install express 4.9.0

npm install express@4.9.0
pnpm add express@4.9.0
yarn add express@4.9.0

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.

Maintained10/10 — 17 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
Code-Review10/10 — all changesets reviewed
Dangerous-Workflow10/10 — no dangerous workflow patterns detected
Binary-Artifacts10/10 — no binaries found in the repo
Pinned-Dependencies6/10 — dependency not pinned by hash detected -- score normalized to 6
CII-Best-Practices0/10 — no effort to earn an OpenSSF best practices badge detected
Token-Permissions10/10 — GitHub workflow tokens follow principle of least privilege
License10/10 — license file detected
Fuzzing0/10 — project is not fuzzed
Security-Policy10/10 — security policy file detected
SAST10/10 — SAST tool is run on all commits

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