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 06 2025 01:52:37 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	✗	47397.6	20.59	8.45
fastify	5.2.0	✓	46913.6	20.82	8.41
rayo	1.4.6	✓	45776.0	21.34	8.16
polka	0.5.2	✓	45503.2	21.46	8.11
server-base-router	7.1.32	✓	45435.2	21.49	8.10
server-base	7.1.32	✗	45228.8	21.61	8.06
connect	3.7.0	✗	44484.0	22.00	7.93
micro	10.0.1	✗	43910.4	22.27	7.83
polkadot	1.0.0	✗	43876.0	22.30	7.82
connect-router	1.3.8	✓	42790.4	22.87	7.63
0http	3.5.3	✓	42768.8	22.88	7.63
micro-route	2.5.0	✓	41304.0	23.73	7.37
adonisjs	7.4.0	✓	40662.4	24.09	7.25
h3-router	1.13.0	✓	40476.8	24.20	7.22
h3	1.13.0	✗	40375.2	24.26	7.20
hono	4.6.16	✓	39924.0	24.53	6.55
restana	4.9.9	✓	37569.6	26.12	6.70
koa	2.15.3	✗	37087.8	26.47	6.61
take-five	2.0.0	✓	35186.2	27.92	12.65
koa-isomorphic-router	1.0.1	✓	35082.2	28.01	6.26
restify	11.1.0	✓	34533.6	28.45	6.22
koa-router	13.1.0	✓	33019.2	29.77	5.89
hapi	21.3.12	✓	32161.4	30.60	5.74
microrouter	3.1.3	✓	29710.0	33.15	5.30
fastify-big-json	5.2.0	✓	11551.4	86.00	132.90
express	5.0.1	✓	9992.2	99.48	1.78
express-with-middlewares	5.0.1	✓	9399.4	105.80	3.50
trpc-router	10.45.2	✓	N/A	N/A	N/A