Package
fp-ts
Functional programming in TypeScript
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 3.3m
- +17% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 0
- Direct, from package.json
- Last release
- 1 year ago
- v2.16.11
- GitHub stars
- 11.6k
- 509 forks
- Open issues / PRs
- 156 / 34
- Contributors
- -
- Commits, last 52 weeks
- 2
Downloads
Last week 2026-09-15 to 2026-09-21
3,322,939 downloads last week, 16,245,014 in the last month. The 12-month change of +17% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 0176 in total
- Latest version
- 2.16.11, 18 Aug 20251 year ago
- First published
- 11 Feb 2017
- Last push to GitHub
- 20 Apr 2026157 days before the snapshot
- Repository archived
- No
- Open issues
- 156
- Open pull requests
- 34
- Commits, last 52 weeks
- 2
- Dependents on npm
- 2,683
Major versions
- v2 first release 2.0.0, 1 Jul 2019
- v1 first release 1.0.0, 12 Feb 2018
- v0 first release 0.0.1, 11 Feb 2017
Recent releases
| Version | Published |
|---|---|
| 2.16.11 | 18 Aug 2025 |
| 2.16.10 | 18 Apr 2025 |
| 2.16.9 | 25 Jul 2024 |
| 2.16.8 | 7 Jul 2024 |
| 2.16.7 | 29 Jun 2024 |
| 2.16.6 | 19 May 2024 |
| 2.16.5 | 25 Mar 2024 |
| 2.16.4 | 18 Mar 2024 |
| 2.16.3 | 11 Mar 2024 |
| 2.16.2 | 3 Jan 2024 |
| 2.16.1 | 27 Jul 2023 |
| 2.16.0 | 25 May 2023 |
| 2.15.0 | 8 May 2023 |
| 2.14.0 | 20 Apr 2023 |
- Module format
- ESM + CommonJSFrom package.json type, main and exports fields
- TypeScript types
- Bundled
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 4.5 MB
- Dependencies (0)
- None
npm install fp-tsCDN
jsDelivr: 499.3k requests in 30 days
- jsDelivr
https://cdn.jsdelivr.net/npm/fp-ts@2.16.11/ - unpkg
https://unpkg.com/fp-ts@2.16.11/ - esm.sh
https://esm.sh/fp-ts@2.16.11
| Package | Weekly downloads | Gzip | Last release | Module | Comparison |
|---|---|---|---|---|---|
| true-myth | 501.2k | - | 4 months ago | ESM only | fp-ts vs true-myth |
| @effect/language-service | 670k | - | 1 month ago | CommonJS | - |
| neverthrow | 2m | - | 1 year ago | ESM + CommonJS | fp-ts vs neverthrow |
| type-fest | 285.1m | - | 7 days ago | ESM only | - |
| tsutils | 16.1m | - | 5 years ago | - | - |
| typical | 10.2m | - | 1 year ago | ESM + CommonJS | - |
| utility-types | 7.8m | - | 2 years ago | CommonJS | - |
| ts-toolbelt | 7.1m | - | 5 years ago | CommonJS | - |
Indexability: Indexed.