TL;DR

• Fastify is a fast and low overhead web framework for Node.js.
• This package shows how fast it is compared to other JS frameworks: these benchmarks do not pretend to represent a real-world scenario, but they give a good indication of the framework overhead.
• The benchmarks are run automatically on GitHub actions, which means they run on virtual hardware that can suffer from the "noisy neighbor" effect; this means that the results can vary.
• 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.
• bench: Benchmark one or more modules.
• compare: Get comparative data for your benchmarks.

Create benchmark before comparing; benchmark bench

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: v20.19.4
• Run: Fri Aug 01 2025 02:04:09 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
node-http	v20.19.4	✗	47272.0	20.65	8.43
connect	3.7.0	✗	45744.0	21.36	8.16
rayo	1.4.6	✓	45485.6	21.49	8.11
fastify	5.4.0	✓	45280.8	21.60	8.12
server-base	7.1.32	✗	45216.0	21.63	8.06
polka	0.5.2	✓	45190.4	21.65	8.06
0http	4.3.0	✓	45171.2	21.64	8.06
polkadot	1.0.0	✗	45147.2	21.65	8.05
micro	10.0.1	✗	45121.6	21.67	8.05
server-base-router	7.1.32	✓	45046.4	21.71	8.03
restana	v5.1.0	✓	43814.4	22.33	7.81
h3	1.15.4	✗	43321.6	22.58	7.73
connect-router	2.2.0	✓	42232.8	23.18	7.53
h3-router	1.15.4	✓	41736.8	23.46	7.44
adonisjs	7.7.0	✓	41528.0	23.59	7.41
micro-route	2.5.0	✓	41158.4	23.80	7.34
srvx	0.8.2	✗	39038.4	25.12	7.59
whatwg-node-server	0.10.12	✗	38876.8	25.24	6.93
hono	4.8.10	✓	36824.0	26.64	6.04
restify	11.1.0	✓	34957.8	28.11	6.30
take-five	2.0.0	✓	34806.6	28.21	12.51
koa	3.0.1	✗	34214.4	28.73	6.10
hapi	21.4.0	✓	31851.8	30.89	5.68
koa-router	13.1.1	✓	31577.6	31.17	5.63
microrouter	3.1.3	✓	30710.0	32.06	5.48
fastify-big-json	5.4.0	✓	11886.6	83.58	136.76
express	5.1.0	✓	10278.4	96.70	1.83
express-with-middlewares	5.1.0	✓	9148.0	108.70	3.40
trpc-router	11.4.3	✓	6292.0	158.17	1.39