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.
• 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 Apr 07 2025 01:57:21 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	✗	46856.0	20.82	8.36
fastify	5.2.2	✓	46211.2	21.12	8.29
polkadot	1.0.0	✗	45945.6	21.27	8.19
polka	0.5.2	✓	45696.0	21.39	8.15
connect	3.7.0	✗	45545.6	21.47	8.12
rayo	1.4.6	✓	45505.6	21.48	8.11
server-base	7.1.32	✗	45286.4	21.60	8.08
h3	1.15.1	✗	44772.8	21.84	7.98
h3-router	1.15.1	✓	44515.2	21.96	7.94
micro	10.0.1	✗	44504.8	21.97	7.94
0http	4.2.0	✓	44310.4	22.07	7.90
server-base-router	7.1.32	✓	44095.2	22.17	7.86
connect-router	1.3.8	✓	43032.8	22.74	7.67
adonisjs	7.6.0	✓	42002.4	23.31	7.49
micro-route	2.5.0	✓	41662.4	23.49	7.43
restana	v5.0.0	✓	40777.6	24.02	7.27
hono	4.7.5	✓	38655.2	25.37	6.34
koa	2.16.1	✗	37571.2	26.11	6.70
restify	11.1.0	✓	35519.4	27.66	6.40
koa-isomorphic-router	1.0.1	✓	34445.0	28.54	6.14
take-five	2.0.0	✓	34100.2	28.82	12.26
koa-router	13.1.0	✓	33143.6	29.67	5.91
hapi	21.4.0	✓	31718.2	31.02	5.66
microrouter	3.1.3	✓	30056.0	32.76	5.36
fastify-big-json	5.2.2	✓	11798.0	84.19	135.76
express	5.1.0	✓	10157.8	97.85	1.81
express-with-middlewares	5.1.0	✓	9104.0	109.21	3.39
trpc-router	10.45.2	✓	N/A	N/A	N/A