autocannon

Name: autocannon
Author: OSS community

One-command HTTP benchmarking for a quick answer about a single endpoint.

Load & PerformanceOpen sourceSelf-hostable

What it is

autocannon is a Node.js HTTP/1.1 benchmarking tool that produces latency percentiles and throughput for a single endpoint from one command line. It is not a scenario tool and makes no attempt to be; it answers 'how fast is this route' in about ten seconds.

Best for

Quick endpoint benchmarks and micro-optimisation work.

Where it is strong

Zero configuration; useful output in seconds.
Good percentile reporting for such a small tool.
Scriptable from Node for micro-benchmarks in CI.

Where it falls short

Single endpoint only — no user journeys, no correlation, no think time.
No distributed execution.
HTTP/1.1 focused.

Pricing

Free and open source

Open source

Free tier: Everything, self-hosted

What drives the bill: Free and open source. You pay in engineering time and CI minutes.

Check current pricing on OSS community’s site

Figures are indicative and were last reviewed August 2026. Vendors change pricing often; confirm before you commit.

Works with

Node.jsGitHub Actions

What people who use autocannon say

No reviews of autocannon yet. If you have used it in anger, yours would be the first.

Alternatives to autocannon

If autocannon is not the right fit, these solve the same problem differently.

Grafana k6

Load & Performance

Developer-first load testing: JavaScript scripts, Go engine, CI-native thresholds.

from $19Open sourceSelf-host

Vegeta

Load & Performance

Constant-rate HTTP load testing from the command line, in Go.

Open sourceSelf-host

autocannon vs Grafana k6 autocannon vs Vegeta