- 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
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
Clone this repo. Then
node ./benchmark [arguments (optional)]
-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
- Machine: linux x64 | 4 vCPUs | 15.6GB Mem
- Node:
v20.19.5 - Run: Fri Oct 03 2025 20:41:09 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 | |
|---|---|---|---|---|---|
| fastify | 5.6.1 | ✓ | 47983.2 | 20.37 | 8.60 |
| node-http | v20.19.5 | ✗ | 47556.8 | 20.53 | 8.48 |
| connect | 3.7.0 | ✗ | 47501.6 | 20.53 | 8.47 |
| polka | 0.5.2 | ✓ | 47028.0 | 20.75 | 8.39 |
| micro | 10.0.1 | ✗ | 46047.2 | 21.21 | 8.21 |
| 0http | 4.3.0 | ✓ | 45755.2 | 21.36 | 8.16 |
| h3 | 1.15.4 | ✗ | 44980.0 | 21.73 | 8.02 |
| h3-router | 1.15.4 | ✓ | 44465.6 | 21.99 | 7.93 |
| restana | v5.1.0 | ✓ | 43776.8 | 22.35 | 7.81 |
| connect-router | 2.2.0 | ✓ | 43460.0 | 22.50 | 7.75 |
| adonisjs | 7.7.0 | ✓ | 42674.4 | 22.95 | 7.61 |
| whatwg-node-server | 0.10.12 | ✗ | 39603.2 | 24.73 | 7.06 |
| hono | 4.9.9 | ✓ | 37111.2 | 26.43 | 6.09 |
| restify | 11.1.0 | ✓ | 36684.8 | 26.76 | 6.61 |
| koa | 3.0.1 | ✗ | 35512.2 | 27.64 | 6.33 |
| hapi | 21.4.3 | ✓ | 32755.2 | 30.02 | 5.84 |
| koa-router | 14.0.0 | ✓ | 32598.4 | 30.18 | 5.81 |
| microrouter | 3.1.3 | ✓ | 30560.4 | 32.21 | 5.45 |
| srvx | 0.8.9 | ✗ | 20282.4 | 48.77 | 3.95 |
| fastify-big-json | 5.6.1 | ✓ | 11790.6 | 84.24 | 135.65 |
| express | 5.1.0 | ✓ | 10183.0 | 97.61 | 1.82 |
| express-with-middlewares | 5.1.0 | ✓ | 9057.4 | 109.78 | 3.37 |
| trpc-router | 11.6.0 | ✓ | 6479.8 | 153.58 | 1.43 |
