Package
fastify
Fast and low overhead web framework, for Node.js
Key numbers
As of 25 Sept 2026
- Weekly downloads
- 9.6m
- +239% over 12 months
- Gzip bundle size
- -
- No Bundlephobia data
- Dependencies
- 15
- Direct, from package.json
- Last release
- 8 days ago
- v5.12.5
- GitHub stars
- 37.2k
- 3k forks
- Open issues / PRs
- 59 / 106
- Contributors
- -
- Commits, last 52 weeks
- 344
Downloads
Last week 2026-09-15 to 2026-09-21
9,612,689 downloads last week, 44,284,831 in the last month. The 12-month change of +239% compares the average of the last 4 weeks with the first 4 weeks of the series.
- Releases, last 12 months
- 24298 in total
- Latest version
- 5.12.5, 16 Sept 20268 days ago
- First published
- 7 Oct 2016
- Last push to GitHub
- 24 Sept 2026same day as the snapshot
- Repository archived
- No
- Open issues
- 59
- Open pull requests
- 106
- Commits, last 52 weeks
- 344
- Dependents on npm
- 5,833
Major versions
- v5 first release 5.0.0, 17 Sept 2024
- v4 first release 4.0.0, 8 Jun 2022
- v3 first release 3.0.0, 7 Jul 2020
- v2 first release 2.0.0, 25 Feb 2019
- v1 first release 1.0.0, 6 Mar 2018
- v0 first release 0.0.1, 7 Oct 2016
Recent releases
| Version | Published |
|---|---|
| 5.12.5 | 16 Sept 2026 |
| 5.12.4 | 11 Sept 2026 |
| 5.12.3 | 4 Sept 2026 |
| 5.12.2 | 4 Sept 2026 |
| 5.12.1 | 18 Aug 2026 |
| 5.12.0 | 13 Aug 2026 |
| 5.11.3 | 8 Aug 2026 |
| 5.11.2 | 3 Aug 2026 |
| 5.11.1 | 3 Aug 2026 |
| 5.11.0 | 30 Jul 2026 |
| 5.10.0 | 5 Jul 2026 |
| 5.9.0 | 28 Jun 2026 |
| 5.8.5 | 14 Apr 2026 |
| 5.8.4 | 23 Mar 2026 |
- Module format
- CommonJSFrom package.json type, main and exports fields
- TypeScript types
- Bundled
- Node.js engine range
- Not declared
- Runtimes
- -
- Unpacked size (npm)
- 2.8 MB
- Dependencies (15)
pinorfdcavviosemvertoad-cachefind-my-way@fastify/errorprocess-warningabstract-logginglight-my-requestsecure-json-parse@fastify/proxy-addrfast-json-stringify@fastify/ajv-compiler@fastify/fast-json-stringify-compiler
npm install fastifyCDN
jsDelivr: 64.5k requests in 30 days
- jsDelivr
https://cdn.jsdelivr.net/npm/fastify@5.12.5/ - unpkg
https://unpkg.com/fastify@5.12.5/ - esm.sh
https://esm.sh/fastify@5.12.5
Indexability: Indexed.