Package

is-docker

Check if the process is running inside a Docker container

v4.0.0, 15 Sept 2025MITESM onlyTypes: Bundled

$ npm install is-docker

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 92.1m; +119% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 1 year ago; v4.0.0
GitHub stars: 234; 15 forks
Open issues / PRs: 0 / 0
Contributors: 7
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.

92,098,897 downloads last week, 447,622,896 in the last month. The 12-month change of +119% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 010 in total
Latest version: 4.0.0, 15 Sept 20251 year ago
First published: 8 Apr 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: 1,380

Major versions

v4 first release 4.0.0, 15 Sept 2025
v3 first release 3.0.0, 31 Aug 2021
v2 first release 2.0.0, 19 Apr 2019
v1 first release 1.0.0, 8 Apr 2015

Recent releases

Version	Published
4.0.0	15 Sept 2025
3.0.0	31 Aug 2021
2.2.1	9 Apr 2021
2.2.0	5 Apr 2021
2.1.1	4 Aug 2020
2.1.0	2 Aug 2020
2.0.0	19 Apr 2019
1.1.0	27 Oct 2016
1.0.1	18 May 2016
1.0.0	8 Apr 2015

Compatibility

Module format: ESM onlyFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: >=20
Runtimes: -
Unpacked size (npm): 3.4 kB
Dependencies (0): None

Install

npm install is-docker

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/is-docker@4.0.0/
unpkghttps://unpkg.com/is-docker@4.0.0/
esm.shhttps://esm.sh/is-docker@4.0.0

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

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