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: v20.18.2
• Run: Mon Feb 03 2025 09:26:10 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
bare	v20.18.2	✗	47791.2	20.44	8.52
polka	0.5.2	✓	46648.0	20.93	8.32
polkadot	1.0.0	✗	46391.2	21.06	8.27
fastify	5.2.1	✓	46266.4	21.11	8.29
connect	3.7.0	✗	45913.6	21.27	8.19
server-base-router	7.1.32	✓	45567.2	21.44	8.13
rayo	1.4.6	✓	45176.0	21.63	8.06
0http	4.1.0	✓	45141.6	21.66	8.05
server-base	7.1.32	✗	44826.4	21.81	7.99
micro	10.0.1	✗	44471.2	21.98	7.93
h3	1.14.0	✗	43591.2	22.44	7.77
connect-router	1.3.8	✓	43149.6	22.67	7.69
micro-route	2.5.0	✓	42744.0	22.88	7.62
h3-router	1.14.0	✓	42338.4	23.12	7.55
adonisjs	7.4.0	✓	42082.4	23.26	7.50
restana	v5.0.0	✓	41513.6	23.59	7.40
hono	4.6.20	✓	39740.0	24.67	6.52
koa	2.15.3	✗	37470.6	26.19	6.68
koa-isomorphic-router	1.0.1	✓	35357.4	27.78	6.31
restify	11.1.0	✓	35079.8	28.00	6.32
take-five	2.0.0	✓	34660.2	28.35	12.46
koa-router	13.1.0	✓	32931.8	29.86	5.87
hapi	21.3.12	✓	31328.6	31.41	5.59
microrouter	3.1.3	✓	30105.2	32.70	5.37
fastify-big-json	5.2.1	✓	11801.6	84.18	135.79
express	5.0.1	✓	10524.4	94.44	1.88
express-with-middlewares	5.0.1	✓	9444.9	105.28	3.51
trpc-router	10.45.2	✓	N/A	N/A	N/A