Package

modernizr

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

v3.13.1MITCommonJSTypes: None

$ npm install modernizr

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 40.5k; -18% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 7; Direct, from package.json
Last release: -; v3.13.1
GitHub stars: 25.7k; 2.9k forks
Open issues / PRs: 173 / 26
Contributors: -
Commits, last 52 weeks: 21

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.

40,466 downloads last week, 176,236 in the last month. The 12-month change of -18% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: -
Latest version: 3.13.1
First published: -
Last push to GitHub: 9 Sept 202616 days before the snapshot
Repository archived: No
Open issues: 173
Open pull requests: 26
Commits, last 52 weeks: 21
Dependents on npm: -

Major versions

Recent releases

Compatibility

Module format: CommonJSFrom package.json type, main and exports fields
TypeScript types: None
Node.js engine range: >=8
Runtimes: -
Unpacked size (npm): 431 kB
Dependencies (7): fileyargslodashmkdirpdoctrinerequirejsmarkdown-it

Install

npm install modernizr

CDN

jsDelivr: 6.9m requests in 30 days

jsDelivrhttps://cdn.jsdelivr.net/npm/modernizr@3.13.1/
unpkghttps://unpkg.com/modernizr@3.13.1/
esm.shhttps://esm.sh/modernizr@3.13.1

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

Indexability: Not indexed (discovery only): no category.