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.
• compare: Get comparative data for your benchmarks.

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: v20.18.1
• Run: Mon Jan 20 2025 01:48:53 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
bare	v20.18.1	✗	47121.8	20.73	8.40
fastify	5.2.1	✓	46243.2	21.12	8.29
polka	0.5.2	✓	45572.0	21.45	8.13
rayo	1.4.6	✓	45404.8	21.53	8.10
connect	3.7.0	✗	45337.6	21.57	8.09
server-base-router	7.1.32	✓	45066.4	21.69	8.04
polkadot	1.0.0	✗	44980.8	21.74	8.02
0http	4.0.0	✓	44627.2	21.91	7.96
server-base	7.1.32	✗	44520.8	21.96	7.94
micro	10.0.1	✗	44171.2	22.14	7.88
connect-router	1.3.8	✓	42840.8	22.85	7.64
micro-route	2.5.0	✓	41688.0	23.49	7.43
adonisjs	7.4.0	✓	41569.6	23.56	7.41
h3	1.13.1	✗	41398.4	23.65	7.38
hono	4.6.17	✓	40537.6	24.15	6.65
h3-router	1.13.1	✓	40528.8	24.17	7.23
restana	v5.0.0	✓	39802.4	24.63	7.10
koa	2.15.3	✗	37801.4	25.95	6.74
take-five	2.0.0	✓	35191.0	27.91	12.65
koa-isomorphic-router	1.0.1	✓	34533.4	28.45	6.16
restify	11.1.0	✓	34443.6	28.53	6.21
koa-router	13.1.0	✓	33534.6	29.32	5.98
hapi	21.3.12	✓	31288.2	31.45	5.58
microrouter	3.1.3	✓	30258.8	32.54	5.40
fastify-big-json	5.2.1	✓	11880.6	83.62	136.69
express	5.0.1	✓	10251.5	96.96	1.83
express-with-middlewares	5.0.1	✓	9222.4	107.82	3.43
trpc-router	10.45.2	✓	N/A	N/A	N/A