Skip to content
JS
Package

is-stream

Check if something is a Node.js stream

v4.0.1, 19 Feb 2024MITESM onlyTypes: Bundled
$ npm install is-stream
npmGitHubHomepage

Key numbers

As of 25 Sept 2026
Weekly downloads
147m
+55% over 12 months
Gzip bundle size
-
No Bundlephobia data
Dependencies
0
Direct, from package.json
Last release
2 years ago
v4.0.1
GitHub stars
115
22 forks
Open issues / PRs
0 / 0
Contributors
6
Commits, last 52 weeks
1

Downloads

Last week 2026-09-15 to 2026-09-21
050m100m150m200mSept 2025Mar 2026Sept 2026High 194.7m (18 Aug 2026)Low 62.7m (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.

146,967,462 downloads last week, 680,414,734 in the last month. The 12-month change of +55% 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
4.0.1, 19 Feb 20242 years ago
First published
18 Jan 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
2,432

Major versions

  1. v4 first release 4.0.0, 19 Feb 2024
  2. v3 first release 3.0.0, 10 Aug 2021
  3. v2 first release 2.0.0, 20 Apr 2019
  4. v1 first release 1.0.0, 18 Jan 2015

Recent releases

VersionPublished
4.0.119 Feb 2024
4.0.019 Feb 2024
3.0.010 Aug 2021
2.0.126 Jul 2021
2.0.020 Apr 2019
1.1.012 Apr 2016
1.0.119 Jan 2015
1.0.018 Jan 2015

Compatibility

Module format
ESM onlyFrom package.json type, main and exports fields
TypeScript types
Bundled
Node.js engine range
>=18
Runtimes
-
Unpacked size (npm)
7.4 kB
Dependencies (0)
None

Install

npm install is-stream

CDN

  • jsDelivrhttps://cdn.jsdelivr.net/npm/is-stream@4.0.1/
  • unpkghttps://unpkg.com/is-stream@4.0.1/
  • esm.shhttps://esm.sh/is-stream@4.0.1
Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

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