Vegeta

Name: Vegeta
Author: OSS community

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

Load & PerformanceOpen sourceSelf-hostable

What it is

Vegeta attacks a target at a specified constant request rate rather than with a fixed number of virtual users, which is the right model when you want to know how the system behaves at 500 requests per second. It outputs latency histograms and plots, and composes well in shell pipelines.

Best for

Backend engineers who want rigorous constant-rate measurements of an endpoint.

Where it is strong

Constant-rate model avoids the coordinated-omission problem that distorts VU-based tools.
Single static binary, trivial to run anywhere.
Composable output for scripting and pipelines.

Where it falls short

No scenarios or session state — one target list, one rate.
No GUI or built-in reporting beyond plots.
Go library usage required for anything sophisticated.

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

PrometheusDockerGitHub Actions

What people who use Vegeta say

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

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