Key numbers
As of 25 Sept 2026
- Weekly downloads
- 33.6k
- -33% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 4
- Direct, from package.json
- Last release
- 7 years ago
- v5.0.1
- GitHub stars
- 4.2k
- 127 forks
- Open issues / PRs
- 46 / 8
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
33,603 downloads last week, 149,817 in the last month. The 12-month change of -33% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- -
- Latest version
- 5.0.1, 4 Jan 20197 years ago
- First published
- -
- Last push to GitHub
- 4 Sept 20202,212 days before the snapshot
- Repository archived
- Yes
- Open issues
- 46
- Open pull requests
- 8
- Commits, last 52 weeks
- 0
- Dependents on npm
- 745
Major versions
-
Recent releases
-
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- >=6.11.5
- Runtimes
- -
- Unpacked size (npm)
- 85 kB
- Dependencies (4)
asyncloader-utilsserialize-errorjson-stringify-safe
npm install happypack- jsDelivr
https://cdn.jsdelivr.net/npm/happypack@5.0.1/ - unpkg
https://unpkg.com/happypack@5.0.1/ - esm.sh
https://esm.sh/happypack@5.0.1
Indexability: Not indexed (discovery only): no category.