HTTP server & framework benchmarks

express benchmark results

express 5.2 is a javascript web framework. At concurrency 64 it serves 48 207 requests per second with a P50 latency of 1.28 ms, ranking 236 of 383 overall and 49 of 69 among javascript frameworks.

Language: javascript ES2019
Framework version: 5.2
Website: https://expressjs.com
Compare express →

Throughput, latency & reliability

All measured metrics for express 5.2, by concurrency level.
Metric	Concurrency 64	Concurrency 256	Concurrency 512
Requests / second	48 207	47 573	46 680
P50 latency	1.28 ms	5.42 ms	10.96 ms
P75 latency	1.53 ms	5.76 ms	11.51 ms
P90 latency	1.60 ms	5.85 ms	11.83 ms
P99 latency	2.10 ms	6.39 ms	12.80 ms
P99.999 latency	9.83 ms	78.03 ms	515.07 ms
Average latency	1.33 ms	5.38 ms	10.95 ms
Minimum latency	0.25 ms	0.24 ms	0.14 ms
Standard deviation	0.31 ms	1.47 ms	8.09 ms
Total requests	723 129	713 680	700 351
Bytes received	127.80 MB	126.13 MB	123.78 MB
HTTP errors	0	0	0
Request timeouts	0	0	0
Socket connection errors	0	0	0
Socket read errors	0	0	0
Socket write errors	0	0	0

Position in this benchmark

Position of express on requests per second.
Concurrency	Overall	Among javascript frameworks
64	236 of 383	49 of 69
256	240 of 383	49 of 69
512	242 of 383	51 of 69

Badge for your README

Show the rank of express in your README. The image is updated together with the results.

[![Web Frameworks Benchmark](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/express/badge.svg)](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/express/)

[![Web Frameworks Benchmark](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/express/badge-language.svg)](https://web-frameworks-benchmark.vercel.app/frameworks/javascript/express/)

Explore javascript frameworks

Fastest javascript frameworks at concurrency 64.
#	Framework	Requests / second	P50 latency	P99 latency
1	morojs-engine 1.1	281 498	0.21 ms	0.47 ms
2	morojs 1.8	279 251	0.21 ms	0.53 ms
3	uwebsockets 20.71	258 863	0.22 ms	0.59 ms
4	fulmine.js 5.21	258 434	0.24 ms	0.59 ms
5	sifrr 0	214 306	0.28 ms	0.74 ms
6	ultimate-express 2.2	206 646	0.35 ms	1.00 ms
7	elysia-bun 1.4	199 540	0.31 ms	0.68 ms
8	mesh 0.8	192 510	0.34 ms	0.80 ms
9	routejs-uwebsocket 3	176 564	0.35 ms	0.89 ms
10	morojs-uws 1.8	176 414	0.36 ms	0.85 ms

All 69 javascript frameworks