- 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: Mon Sep 22 2025 07:58:49 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 | |
|---|---|---|---|---|---|
| node-http | v20.19.5 | ✗ | 47151.2 | 20.70 | 8.41 |
| polka | 0.5.2 | ✓ | 46113.6 | 21.16 | 8.22 |
| fastify | 5.6.0 | ✓ | 46104.0 | 21.18 | 8.27 |
| micro | 10.0.1 | ✗ | 45543.2 | 21.45 | 8.12 |
| connect | 3.7.0 | ✗ | 44992.8 | 21.74 | 8.02 |
| 0http | 4.3.0 | ✓ | 44784.8 | 21.84 | 7.99 |
| h3 | 1.15.4 | ✗ | 43999.2 | 22.23 | 7.85 |
| connect-router | 2.2.0 | ✓ | 42380.8 | 23.09 | 7.56 |
| restana | v5.1.0 | ✓ | 41460.8 | 23.62 | 7.39 |
| h3-router | 1.15.4 | ✓ | 41304.0 | 23.71 | 7.37 |
| adonisjs | 7.7.0 | ✓ | 41156.0 | 23.80 | 7.34 |
| srvx | 0.8.7 | ✗ | 39399.2 | 24.88 | 7.66 |
| whatwg-node-server | 0.10.12 | ✗ | 38519.4 | 25.47 | 6.87 |
| hono | 4.9.8 | ✓ | 36678.2 | 26.76 | 6.02 |
| koa | 3.0.1 | ✗ | 34726.0 | 28.29 | 6.19 |
| restify | 11.1.0 | ✓ | 34204.8 | 28.74 | 6.17 |
| koa-router | 14.0.0 | ✓ | 32203.2 | 30.56 | 5.74 |
| hapi | 21.4.3 | ✓ | 30864.8 | 31.89 | 5.50 |
| microrouter | 3.1.3 | ✓ | 30650.0 | 32.12 | 5.47 |
| fastify-big-json | 5.6.0 | ✓ | 11906.0 | 83.42 | 136.98 |
| express | 5.1.0 | ✓ | 9824.4 | 101.20 | 1.75 |
| express-with-middlewares | 5.1.0 | ✓ | 8744.3 | 113.69 | 3.25 |
| trpc-router | 11.5.1 | ✓ | 6234.1 | 159.68 | 1.37 |
