Package
upcast
Upcast is a low-level JavaScript type checking and casting library
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 11.6k
- +7% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 1
- Direct, from package.json
- Last release
- 7 years ago
- v4.0.0
- GitHub stars
- 74
- 7 forks
- Open issues / PRs
- 4 / 8
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
11,600 downloads last week, 58,914 in the last month. The 12-month change of +7% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- -
- Latest version
- 4.0.0, 28 Sept 20187 years ago
- First published
- -
- Last push to GitHub
- 29 Oct 20202,156 days before the snapshot
- Repository archived
- No
- Open issues
- 4
- Open pull requests
- 8
- Commits, last 52 weeks
- 0
- Dependents on npm
- 6
Major versions
-
Recent releases
-
- Module format
- ESM + CommonJSFrom package.json type, main and exports fields
- TypeScript types
- None
- Node.js engine range
- >4
- Runtimes
- -
- Unpacked size (npm)
- 16 kB
- Dependencies (1)
esm
npm install upcast- jsDelivr
https://cdn.jsdelivr.net/npm/upcast@4.0.0/ - unpkg
https://unpkg.com/upcast@4.0.0/ - esm.sh
https://esm.sh/upcast@4.0.0
Indexability: Indexed.