Package
async-sema
Semaphore using `async` and `await`
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 7.1m
- +200% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 0
- Direct, from package.json
- Last release
- 5 years ago
- v3.1.1
- GitHub stars
- 660
- 46 forks
- Open issues / PRs
- 5 / 6
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
7,117,629 downloads last week, 35,205,651 in the last month. The 12-month change of +200% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 019 in total
- Latest version
- 3.1.1, 17 Aug 20215 years ago
- First published
- 28 Jul 2017
- Last push to GitHub
- 18 Apr 2024889 days before the snapshot
- Repository archived
- No
- Open issues
- 5
- Open pull requests
- 6
- Commits, last 52 weeks
- 0
- Dependents on npm
- 197
Major versions
- v3 first release 3.0.0, 25 Feb 2019
- v2 first release 2.0.0, 18 Mar 2018
- v1 first release 1.0.0, 28 Jul 2017
Recent releases
| Version | Published |
|---|---|
| 3.1.1 | 17 Aug 2021 |
| 3.1.0 | 20 Dec 2019 |
| 3.0.1 | 23 Aug 2019 |
| 3.0.0 | 25 Feb 2019 |
| 2.2.0 | 22 Feb 2019 |
| 2.1.4 | 5 Oct 2018 |
| 2.1.3 | 24 Sept 2018 |
| 2.1.2 | 20 Jul 2018 |
| 2.1.1 | 13 Jun 2018 |
| 2.1.0 | 17 May 2018 |
| 2.0.0 | 18 Mar 2018 |
| 1.4.1 | 21 Jan 2018 |
| 1.4.0 | 20 Jan 2018 |
| 1.3.0 | 19 Jan 2018 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 13 kB
- Dependencies (0)
- None
npm install async-sema- jsDelivr
https://cdn.jsdelivr.net/npm/async-sema@3.1.1/ - unpkg
https://unpkg.com/async-sema@3.1.1/ - esm.sh
https://esm.sh/async-sema@3.1.1
| Package | Weekly downloads | Gzip | Last release | Module | Comparison |
|---|---|---|---|---|---|
| superlock | 144.3k | - | 1 month ago | CommonJS | - |
| asyncro | 150.9k | - | 8 years ago | ESM + CommonJS | - |
| flush-promises | 218.6k | - | 7 years ago | CommonJS | - |
| modern-async | 127.2k | - | 1 year ago | ESM + CommonJS | - |
| @lifeomic/attempt | 866.3k | - | 2 years ago | ESM + CommonJS | - |
| neo-async | 50m | - | 6 years ago | CommonJS | - |
| await-to-js | 1.7m | - | 5 years ago | - | - |
Indexability: Indexed.