Package

is-builtin-module

Check if a string matches the name of a Node.js builtin module

v5.0.0, 27 Feb 2025MITESM onlyTypes: Bundled

$ npm install is-builtin-module

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 8.1m; +7% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 1; Direct, from package.json
Last release: 1 year ago; v5.0.0
GitHub stars: 62; 8 forks
Open issues / PRs: 0 / 0
Contributors: -
Commits, last 52 weeks: 1

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.

8,067,916 downloads last week, 38,121,566 in the last month. The 12-month change of +7% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 08 in total
Latest version: 5.0.0, 27 Feb 20251 year ago
First published: 4 May 2015
Last push to GitHub: 18 Sept 20266 days before the snapshot
Repository archived: No
Open issues: 0
Open pull requests: 0
Commits, last 52 weeks: 1
Dependents on npm: 315

Major versions

v5 first release 5.0.0, 27 Feb 2025
v4 first release 4.0.0, 30 Apr 2024
v3 first release 3.0.0, 19 Sept 2018
v2 first release 2.0.0, 15 Nov 2017
v1 first release 1.0.0, 4 May 2015

Recent releases

Version	Published
5.0.0	27 Feb 2025
4.0.0	30 Apr 2024
3.2.1	31 Jan 2023
3.2.0	31 Jul 2022
3.1.0	21 Apr 2021
3.0.0	19 Sept 2018
2.0.0	15 Nov 2017
1.0.0	4 May 2015

Compatibility

Module format: ESM onlyFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: >=18.20
Runtimes: -
Unpacked size (npm): 3.8 kB
Dependencies (1): builtin-modules

Install

npm install is-builtin-module

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/is-builtin-module@5.0.0/
unpkghttps://unpkg.com/is-builtin-module@5.0.0/
esm.shhttps://esm.sh/is-builtin-module@5.0.0

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

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