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: v20.19.2
• Run: Sun Jun 01 2025 02:03:33 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	v20.19.2	✗	49103.2	19.88	8.76
fastify	5.3.3	✓	47056.0	20.75	8.44
rayo	1.4.6	✓	46955.2	20.79	8.37
connect	3.7.0	✗	46831.2	20.84	8.35
polka	0.5.2	✓	46768.0	20.87	8.34
server-base	7.1.32	✗	46647.2	20.93	8.32
micro	10.0.1	✗	46006.4	21.23	8.20
0http	4.2.1	✓	45880.0	21.30	8.18
polkadot	1.0.0	✗	45716.8	21.38	8.15
server-base-router	7.1.32	✓	45399.2	21.53	8.10
connect-router	2.2.0	✓	43677.6	22.38	7.79
adonisjs	7.6.1	✓	43279.2	22.61	7.72
micro-route	2.5.0	✓	42784.8	22.86	7.63
h3	1.15.3	✗	42768.8	22.88	7.63
h3-router	1.15.3	✓	41819.2	23.42	7.46
restana	v5.0.0	✓	41617.6	23.54	7.42
hono	4.7.11	✓	40141.6	24.40	6.58
srvx	0.7.3	✗	39961.6	24.52	7.77
whatwg-node-server	0.10.10	✗	38295.2	25.61	6.83
koa	2.16.1	✗	37660.6	26.05	6.72
restify	11.1.0	✓	35584.2	27.59	6.41
take-five	2.0.0	✓	35229.0	27.87	12.67
koa-isomorphic-router	1.0.1	✓	35033.8	28.04	6.25
koa-router	13.1.0	✓	33662.4	29.21	6.00
hapi	21.4.0	✓	32034.0	30.71	5.71
microrouter	3.1.3	✓	30264.8	32.52	5.40
fastify-big-json	5.3.3	✓	11811.6	84.11	135.90
express	5.1.0	✓	10037.2	99.05	1.79
express-with-middlewares	5.1.0	✓	9029.8	110.11	3.36
trpc-router	11.1.4	✓	5811.6	171.26	1.28