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: Tue Sep 02 2025 13:43:58 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	✗	47508.8	20.55	8.47
fastify	5.5.0	✓	46400.0	21.04	8.32
connect	3.7.0	✗	46372.8	21.05	8.27
polka	0.5.2	✓	45937.6	21.25	8.19
micro	10.0.1	✗	45916.8	21.28	8.19
rayo	1.4.6	✓	45821.6	21.32	8.17
server-base	7.1.32	✗	45448.0	21.50	8.10
server-base-router	7.1.32	✓	45212.8	21.63	8.06
polkadot	1.0.0	✗	45120.8	21.66	8.05
0http	4.3.0	✓	44143.2	22.16	7.87
h3-router	1.15.4	✓	43372.0	22.56	7.73
connect-router	2.2.0	✓	43289.6	22.59	7.72
restana	v5.1.0	✓	43057.6	22.73	7.68
h3	1.15.4	✗	42992.8	22.76	7.67
micro-route	2.5.0	✓	42820.8	22.85	7.64
adonisjs	7.7.0	✓	41960.8	23.34	7.48
srvx	0.8.7	✗	40087.2	24.45	7.80
whatwg-node-server	0.10.12	✗	38632.0	25.39	6.89
hono	4.9.5	✓	37366.4	26.27	6.13
take-five	2.0.0	✓	35157.0	27.95	12.64
koa	3.0.1	✗	34806.6	28.23	6.21
restify	11.1.0	✓	34499.2	28.48	6.22
koa-router	14.0.0	✓	32287.4	30.47	5.76
hapi	21.4.3	✓	31980.8	30.77	5.70
microrouter	3.1.3	✓	30242.0	32.56	5.39
fastify-big-json	5.5.0	✓	11722.2	84.75	134.87
express	5.1.0	✓	10100.8	98.42	1.80
express-with-middlewares	5.1.0	✓	9082.1	109.49	3.38
trpc-router	11.5.0	✓	6417.9	155.08	1.41