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: v24.22.2
• Run: Sun Nov 01 2026 23:10:10 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	✓	96659.2	9.91	17.24
restana	6.1.0	✓	92734.4	10.34	16.54
polka	0.5.2	✓	91195.2	10.50	16.26
node-http	v24.22.2	✗	90524.8	10.59	16.14
connect	3.7.0	✗	89977.6	10.60	16.05
fastify	5.12.7	✓	89732.8	10.63	16.09
connect-router	2.2.0	✓	85739.2	11.16	15.29
hono	4.13.14	✓	84929.6	11.28	13.93
micro	10.0.1	✗	84707.2	11.31	15.11
srvx	1.0.7	✗	84556.8	11.29	13.71
elysia	1.4.30	✓	82528.0	11.60	13.54
adonisjs	9.3.1	✓	82273.6	11.68	14.67
h3	2.0.8	✓	80974.4	11.85	14.21
whatwg-node-server	0.13.1	✗	75409.2	12.73	13.45
koa	3.2.1	✗	72593.6	13.27	12.95
restify	12.1.0	✓	69162.0	13.97	12.47
koa-router	15.7.0	✓	67955.6	14.22	12.12
express	5.3.0	✓	67794.0	14.25	12.09
hapi	21.4.11	✓	65114.0	14.86	11.61
microrouter	3.1.3	✓	61872.0	15.69	11.03
express-with-middlewares	5.3.0	✓	57160.0	16.99	21.26
fastify-big-json	5.12.7	✓	26195.2	37.66	301.42
trpc-router	11.19.0	✓	19806.8	49.97	4.51

POST Benchmarks

• Machine: linux x64 | 4 vCPUs | 15.6GB Mem
• Node: v24.22.2
• Run: Sun Nov 01 2026 23:10:11 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	v24.22.2	✗	72229.2	13.35	12.88
fastify	5.12.7	✓	69080.0	13.98	12.39
hono	4.13.14	✓	60345.2	16.08	9.90
h3	2.0.8	✓	58771.2	16.52	10.31
koa	3.2.1	✗	45784.8	21.35	8.16
express	5.3.0	✓	44141.6	22.15	7.87
restify	12.1.0	✓	43530.4	22.49	7.85
hapi	21.4.11	✓	34408.6	28.55	6.14