Package
proper-lockfile
A inter-process and inter-machine lockfile utility that works on a local or network file system
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 18.7m
- +464% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 3
- Direct, from package.json
- Last release
- 5 years ago
- v4.1.2
- GitHub stars
- 285
- 49 forks
- Open issues / PRs
- 15 / 6
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
18,749,755 downloads last week, 89,167,869 in the last month. The 12-month change of +464% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 033 in total
- Latest version
- 4.1.2, 25 Jan 20215 years ago
- First published
- 13 Jul 2014
- Last push to GitHub
- 25 Oct 20231,065 days before the snapshot
- Repository archived
- No
- Open issues
- 15
- Open pull requests
- 6
- Commits, last 52 weeks
- 0
- Dependents on npm
- 2,354
Major versions
- v4 first release 4.0.0, 13 Mar 2019
- v3 first release 3.0.0, 20 Jan 2018
- v2 first release 2.0.0, 15 Sept 2016
- v1 first release 1.0.0, 10 Apr 2015
- v0 first release 0.1.0, 13 Jul 2014
Recent releases
| Version | Published |
|---|---|
| 4.1.2 | 25 Jan 2021 |
| 4.1.1 | 3 Apr 2019 |
| 4.1.0 | 18 Mar 2019 |
| 4.0.0 | 13 Mar 2019 |
| 3.2.0 | 19 Nov 2018 |
| 3.1.0 | 15 Nov 2018 |
| 3.0.2 | 30 Jan 2018 |
| 3.0.1 | 20 Jan 2018 |
| 3.0.0 | 20 Jan 2018 |
| 2.0.1 | 24 Apr 2017 |
| 2.0.0 | 15 Sept 2016 |
| 1.2.0 | 12 Sept 2016 |
| 1.1.3 | 20 Aug 2016 |
| 1.1.2 | 26 Jan 2016 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 29 kB
- Dependencies (3)
retrygraceful-fssignal-exit
npm install proper-lockfile- jsDelivr
https://cdn.jsdelivr.net/npm/proper-lockfile@4.1.2/ - unpkg
https://unpkg.com/proper-lockfile@4.1.2/ - esm.sh
https://esm.sh/proper-lockfile@4.1.2
Indexability: Indexed.