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: Mon May 05 2025 08:52:50 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
fastify	5.3.2	✓	45781.6	21.34	8.21
server-base	7.1.32	✗	45754.4	21.35	8.16
node-http	v20.19.1	✗	45635.2	21.42	8.14
connect	3.7.0	✗	45563.8	21.44	8.13
polka	0.5.2	✓	45507.2	21.48	8.12
server-base-router	7.1.32	✓	45502.4	21.47	8.11
polkadot	1.0.0	✗	44886.4	21.78	8.01
0http	4.2.0	✓	44540.8	21.96	7.94
rayo	1.4.6	✓	44164.0	22.15	7.88
micro	10.0.1	✗	43184.0	22.65	7.70
h3	1.15.3	✗	42275.2	23.16	7.54
connect-router	2.2.0	✓	42099.2	23.25	7.51
adonisjs	7.6.0	✓	42047.2	23.28	7.50
micro-route	2.5.0	✓	41296.0	23.72	7.36
h3-router	1.15.3	✓	41262.4	23.73	7.36
hono	4.7.8	✓	39441.6	24.85	6.47
restana	v5.0.0	✓	37971.2	25.84	6.77
koa	2.16.1	✗	35760.6	27.46	6.38
take-five	2.0.0	✓	34439.4	28.53	12.38
restify	11.1.0	✓	34378.6	28.58	6.20
koa-isomorphic-router	1.0.1	✓	34198.2	28.74	6.10
koa-router	13.1.0	✓	32029.6	30.71	5.71
hapi	21.4.0	✓	31396.0	31.35	5.60
microrouter	3.1.3	✓	28867.6	34.13	5.15
fastify-big-json	5.3.2	✓	11689.0	84.99	134.50
express	5.1.0	✓	9836.6	101.07	1.75
express-with-middlewares	5.1.0	✓	8761.6	113.49	3.26
trpc-router	11.1.2	✓	6029.6	165.06	1.33