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CI Coverage Status js-standard-style NPM version NPM downloads Discord


TL;DR

  • Fastify is a fast and low overhead web framework for Node.js.
  • This package shows how fast it is comparatively.
  • For metrics (cold-start) see metrics.md

Requirements

To be included in this list, the framework should captivate users' interest. We have identified the following minimal requirements:

  • Ensure active usage: a minimum of 500 downloads per week
  • Maintain an active repository with at least one event (comment, issue, PR) in the last month
  • The framework must use the Node.js HTTP module

Usage

Clone this repo. Then

node ./benchmark [arguments (optional)]

Arguments

  • -h: Help on how to use the tool.
  • compare: Get comparative data for your benchmarks.

You may also compare all test results, at once, in a single table; benchmark compare -t

You can also extend the comparison table with percentage values based on fastest result; benchmark compare -p

Benchmarks

  • Machine: linux x64 | 4 vCPUs | 15.6GB Mem
  • Node: v20.19.0
  • Run: Mon Mar 24 2025 01:32:47 GMT+0000 (Coordinated Universal Time)
  • Method: autocannon -c 100 -d 40 -p 10 localhost:3000 (two rounds; one to warm-up, one to measure)
Version Router Requests/s Latency (ms) Throughput/Mb
bare v20.19.0 ✗ 47413.6 20.60 8.45
fastify 4.29.0 ✓ 46555.2 20.97 8.35
polkadot 1.0.0 ✗ 46433.6 21.04 8.28
kita 1.1.36 ✓ 46428.0 21.03 8.32
polka 0.5.2 ✓ 46273.6 21.11 8.25
rayo 1.4.6 ✓ 46172.0 21.15 8.23
server-base-router 7.1.32 ✓ 45869.6 21.30 8.18
0http 3.5.3 ✓ 45561.6 21.45 8.13
connect 3.7.0 ✗ 45386.4 21.53 8.09
server-base 7.1.32 ✗ 45243.2 21.61 8.07
connect-router 1.3.8 ✓ 43250.4 22.61 7.71
h3 1.15.1 ✗ 42780.8 22.88 7.63
h3-router 1.15.1 ✓ 41834.4 23.41 7.46
hono 4.7.5 ✓ 40185.6 24.37 6.59
restana 4.9.9 ✓ 38241.0 25.66 6.82
koa 2.16.0 ✗ 36650.2 26.79 6.54
take-five 2.0.0 ✓ 35353.8 27.79 12.71
restify 11.1.0 ✓ 35082.2 27.99 6.32
koa-isomorphic-router 1.0.1 ✓ 34066.6 28.86 6.08
koa-router 12.0.1 ✓ 32679.0 30.10 5.83
hapi 21.4.0 ✓ 31298.6 31.44 5.58
fastify-big-json 4.29.0 ✓ 11724.2 84.74 134.89
express 4.21.2 ✓ 10986.6 90.44 1.96
express-with-middlewares 4.21.2 ✓ 10486.2 94.75 3.90
micro-route 2.5.0 ✓ N/A N/A N/A
micro 10.0.1 ✗ N/A N/A N/A
microrouter 3.1.3 ✓ N/A N/A N/A
trpc-router 10.45.2 ✓ N/A N/A N/A