npm download-data warning: The npm downloads API reported suspected registry-wide zero days (2026-10-30, 2026-10-31). Trailing-week download totals on this page may be understated, not evidence of falling demand. EcosystemPulse excludes unreliable dates from momentum calculations and does not invent missing counts.

fastify

Fast and low overhead web framework, for Node.js

npmv5.12.7MIT

Trailing-week npm downloads: 21,422,804

Download momentum

npm daily downloads

Momentum is unavailable. It requires 14 consecutive reliable calendar days and fresh data. Currently 8 consecutive reliable day(s) are available; the latest is 2026-10-29. Missing or unreliable dates are not counted as zero.

Release activity

19days since latest release
9releases in 90 days
5.0median days between recent releases

Quick Info

Registrynpm
Latest Version5.12.7
Total Versions334
Created2016-10-07
Last Modified2026-10-13
LicenseMIT
Homepagehttps://fastify.dev/

Version History (Last 10)

VersionReleased
5.12.72026-10-13
6.0.0-alpha.52026-10-13
5.12.62026-10-13
6.0.0-alpha.42026-09-16
5.12.52026-09-16
5.12.42026-09-11
6.0.0-alpha.32026-09-04
5.12.32026-09-04
5.12.22026-09-04
6.0.0-alpha.22026-08-18

Dependencies (15)

  • pino
  • rfdc
  • avvio
  • semver
  • toad-cache
  • find-my-way
  • @fastify/error
  • process-warning
  • abstract-logging
  • light-my-request
  • secure-json-parse
  • @fastify/proxy-addr
  • fast-json-stringify
  • @fastify/ajv-compiler
  • @fastify/fast-json-stringify-compiler

Keywords

  • web
  • framework
  • json
  • schema
  • open
  • api