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

Scenarios

• get (default): GET / responding with { hello: 'world' }. Servers live in benchmarks/.
• post: POST / with a {"hello":"world"} JSON body, parsed and echoed back. Servers live in benchmarks/post/.

Pass the scenario as the fifth argument when benchmarking non-interactively, and with -s when comparing:

node ./benchmark bench y 100 10 40 post
node ./benchmark compare -t -s post

Benchmarks

• Machine: linux x64 | 4 vCPUs | 15.6GB Mem
• Node: v24.22.3
• Run: Sat Nov 14 2026 21:09:46 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
0http	5.2.0	✓	85252.8	11.21	15.20
restana	6.1.0	✓	83182.4	11.49	14.83
node-http	v24.22.3	✗	81011.2	11.98	14.45
polka	0.5.2	✓	80230.4	12.08	14.31
connect	3.7.0	✗	79144.0	12.17	14.11
fastify	5.12.8	✓	78696.0	12.18	14.11
connect-router	2.2.0	✓	74883.2	12.80	13.35
hono	4.13.17	✓	74163.2	12.99	12.17
micro	10.0.1	✗	72540.8	13.30	12.94
srvx	1.0.8	✗	71611.6	13.41	11.61
h3	2.0.8	✓	69174.8	13.97	12.14
elysia	1.4.31	✓	68231.2	14.23	11.19
adonisjs	9.3.1	✓	67820.4	14.23	12.10
koa	3.3.0	✗	57570.4	16.87	10.27
restify	12.1.0	✓	54070.4	18.04	9.75
express	5.3.0	✓	53784.8	18.13	9.59
koa-router	15.7.1	✓	52548.8	18.52	9.37
hapi	21.4.13	✓	48864.8	19.96	8.72
microrouter	3.1.3	✓	48449.6	20.11	8.64
express-with-middlewares	5.3.0	✓	45005.6	21.71	16.74
fastify-big-json	5.12.8	✓	19882.0	49.76	228.75
trpc-router	11.25.0	✓	15073.6	65.80	3.44
whatwg-node-server	0.13.2	✗	N/A	N/A	N/A

POST Benchmarks

• Machine: linux x64 | 4 vCPUs | 15.6GB Mem
• Node: v24.22.3
• Run: Sat Nov 14 2026 21:09:46 GMT+0000 (Coordinated Universal Time)
• Method: autocannon -c 100 -d 40 -p 10 -m POST -H content-type=application/json -b '{"hello":"world"}' localhost:3000 (two rounds; one to warm-up, one to measure)

	Version	Router	Requests/s	Latency (ms)	Throughput/Mb
node-http	v24.22.3	✗	55476.8	17.53	9.89
fastify	5.12.8	✓	47248.0	20.64	8.47
hono	4.13.17	✓	39976.0	24.50	6.56
h3	2.0.8	✓	39675.2	24.74	6.96
express	5.3.0	✓	27924.4	35.30	4.98
koa	3.3.0	✗	26721.2	36.91	4.77
restify	12.1.0	✓	26605.6	37.08	4.80
hapi	21.4.13	✓	20005.6	49.47	3.57