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reflect-metadata

Polyfill for Metadata Reflection API

v0.2.2, 29 Mar 2024Apache-2.0CommonJSTypes: BundledTypeScript tooling
$ npm install reflect-metadata

Key numbers

As of 25 Sept 2026
Weekly downloads
30.2m
+93% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
2 years ago
v0.2.2
GitHub stars
3.4k
191 forks
Open issues / PRs
25 / 5
Contributors
-
Commits, last 52 weeks
1

Downloads

Last week 2026-09-15 to 2026-09-21
020m40m60mSept 2025Mar 2026Sept 2026High 41.5m (25 Aug 2026)Low 10.3m (23 Dec 2025)
Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

30,245,302 downloads last week, 140,844,917 in the last month. The 12-month change of +93% compares the average of the last 4 weeks with the first 4 weeks of the series.

Releases, last 12 months
019 in total
Latest version
0.2.2, 29 Mar 20242 years ago
First published
14 Apr 2015
Last push to GitHub
24 Aug 202631 days before the snapshot
Repository archived
No
Open issues
25
Open pull requests
5
Commits, last 52 weeks
1
Dependents on npm
24,324

Major versions

  1. v0 first release 0.0.2, 14 Apr 2015

Recent releases

VersionPublished
0.2.229 Mar 2024
0.2.114 Dec 2023
0.2.013 Dec 2023
0.1.147 Dec 2023
0.1.1315 Jan 2019
0.1.1216 Jan 2018
0.1.1021 Feb 2017
0.1.921 Dec 2016
0.1.89 Aug 2016
0.1.79 Aug 2016
0.1.69 Aug 2016
0.1.59 Aug 2016
0.1.45 Aug 2016
0.1.36 Jan 2016
Module format
CommonJSFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
Not declared
Runtimes
-
Unpacked size (npm)
236 kB
Dependencies (0)
None
npm install reflect-metadata

CDN

jsDelivr: 345.1k requests in 30 days
  • jsDelivrhttps://cdn.jsdelivr.net/npm/reflect-metadata@0.2.2/
  • unpkghttps://unpkg.com/reflect-metadata@0.2.2/
  • esm.shhttps://esm.sh/reflect-metadata@0.2.2
Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.