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: v20.19.1
• Run: Thu May 08 2025 17:22:36 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	v20.19.1	✗	47770.4	20.46	8.52
polka	0.5.2	✓	47529.6	20.52	8.48
rayo	1.4.6	✓	46485.6	21.01	8.29
polkadot	1.0.0	✗	46413.6	21.05	8.28
server-base-router	7.1.32	✓	46048.0	21.20	8.21
server-base	7.1.32	✗	45766.4	21.34	8.16
fastify	5.3.2	✓	45656.8	21.40	8.19
connect	3.7.0	✗	45392.0	21.53	8.09
micro	10.0.1	✗	44385.6	22.02	7.92
h3	1.15.3	✗	43540.0	22.47	7.77
0http	4.2.0	✓	42765.6	22.89	7.63
micro-route	2.5.0	✓	42576.8	22.97	7.59
connect-router	2.2.0	✓	41602.4	23.54	7.42
h3-router	1.15.3	✓	41300.8	23.72	7.37
adonisjs	7.6.0	✓	41134.4	23.81	7.34
hono	4.7.8	✓	40757.6	24.04	6.69
restana	v5.0.0	✓	39673.8	24.71	7.08
koa	2.16.1	✗	37520.8	26.18	6.69
take-five	2.0.0	✓	35226.2	27.88	12.67
restify	11.1.0	✓	35189.4	27.92	6.34
koa-isomorphic-router	1.0.1	✓	34661.0	28.34	6.18
koa-router	13.1.0	✓	32678.2	30.09	5.83
hapi	21.4.0	✓	32200.2	30.55	5.74
microrouter	3.1.3	✓	30210.8	32.60	5.39
fastify-big-json	5.3.2	✓	11660.0	85.19	134.14
express	5.1.0	✓	9812.4	101.30	1.75
express-with-middlewares	5.1.0	✓	8761.5	113.46	3.26
trpc-router	11.1.2	✓	5826.7	170.83	1.28