Key numbers
As of 25 Sept 2026
- Weekly downloads
- 625.8k
- +143% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 0
- Direct, from package.json
- Last release
- 3 years ago
- v4.2.1
- GitHub stars
- 28
- 3 forks
- Open issues / PRs
- 1 / 1
- Contributors
- -
- Commits, last 52 weeks
- 0
Downloads
Last week 2026-09-15 to 2026-09-21
625,780 downloads last week, 2,875,027 in the last month. The 12-month change of +143% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 05 in total
- Latest version
- 4.2.1, 24 May 20233 years ago
- First published
- 21 Apr 2021
- Last push to GitHub
- 14 Aug 20231,137 days before the snapshot
- Repository archived
- No
- Open issues
- 1
- Open pull requests
- 1
- Commits, last 52 weeks
- 0
- Dependents on npm
- -
Major versions
- v4 first release 4.0.0, 21 Apr 2021
Recent releases
| Version | Published |
|---|---|
| 4.2.1 | 24 May 2023 |
| 4.2.0 | 22 May 2023 |
| 4.1.1 | 6 Jul 2021 |
| 4.1.0 | 17 May 2021 |
| 4.0.0 | 21 Apr 2021 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- Bundled
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 270 kB
- Dependencies (0)
- None
npm install mhchemparser- jsDelivr
https://cdn.jsdelivr.net/npm/mhchemparser@4.2.1/ - unpkg
https://unpkg.com/mhchemparser@4.2.1/ - esm.sh
https://esm.sh/mhchemparser@4.2.1
Indexability: Not indexed (discovery only): no category.