Package

numcodecs

Buffer compression and transformation codecs for use in data storage and communication applications.

v0.3.2, 14 Aug 2024MITESM onlyTypes: BundledCompression and archives

$ npm install numcodecs

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 270.5k; +2246% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 1; Direct, from package.json
Last release: 2 years ago; v0.3.2
GitHub stars: 38; 10 forks
Open issues / PRs: 5 / 1
Contributors: -
Commits, last 52 weeks: 0

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

270,540 downloads last week, 1,240,992 in the last month. The 12-month change of +2246% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: -
Latest version: 0.3.2, 14 Aug 20242 years ago
First published: -
Last push to GitHub: 21 Feb 2025581 days before the snapshot
Repository archived: No
Open issues: 5
Open pull requests: 1
Commits, last 52 weeks: 0
Dependents on npm: 18

Major versions

Recent releases

Compatibility

Module format: ESM onlyFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): 1.4 MB
Dependencies (1): fflate

Install

npm install numcodecs

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/numcodecs@0.3.2/
unpkghttps://unpkg.com/numcodecs@0.3.2/
esm.shhttps://esm.sh/numcodecs@0.3.2

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
hysnappy fast and tiny snappy compression in wasm	197.8k	-	7 months ago	ESM only	-

Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.