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: v20.19.3
• Run: Tue Jul 01 2025 01:59:15 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	v20.19.3	✗	48940.8	19.95	8.73
fastify	5.4.0	✓	47571.2	20.52	8.53
polkadot	1.0.0	✗	47542.4	20.53	8.48
polka	0.5.2	✓	47040.0	20.75	8.39
server-base-router	7.1.32	✓	46409.6	21.04	8.28
connect	3.7.0	✗	46234.4	21.12	8.25
rayo	1.4.6	✓	46180.8	21.14	8.24
server-base	7.1.32	✗	45599.2	21.42	8.13
micro	10.0.1	✗	45558.4	21.45	8.12
h3-router	1.15.3	✓	44320.0	22.07	7.90
0http	4.2.1	✓	44085.6	22.19	7.86
h3	1.15.3	✗	44059.2	22.19	7.86
connect-router	2.2.0	✓	43342.4	22.57	7.73
micro-route	2.5.0	✓	42739.2	22.90	7.62
adonisjs	7.7.0	✓	42530.4	23.01	7.58
srvx	0.7.5	✗	41048.0	23.84	7.99
restana	v5.0.0	✓	40699.2	24.07	7.26
whatwg-node-server	0.10.10	✗	39694.4	24.70	7.08
hono	4.8.3	✓	37666.4	26.05	6.18
koa	3.0.0	✗	37639.0	26.07	6.71
take-five	2.0.0	✓	35683.0	27.50	12.83
restify	11.1.0	✓	34926.2	28.12	6.30
koa-router	13.1.0	✓	33293.2	29.53	5.94
hapi	21.4.0	✓	32131.0	30.62	5.73
microrouter	3.1.3	✓	29931.2	32.90	5.34
fastify-big-json	5.4.0	✓	12030.0	82.58	138.41
express	5.1.0	✓	10149.0	97.94	1.81
express-with-middlewares	5.1.0	✓	9168.1	108.44	3.41
trpc-router	11.4.3	✓	6350.5	156.73	1.40