oha

Why we included this project

oha is a small, single-binary command-line tool for load testing: you point it at a web endpoint and it fires a configurable stream of requests while showing progress in a live terminal dashboard. The output covers throughput, latency percentiles, and timing details, which is what you need when estimating how much traffic a service can actually handle or comparing two deployments side by side. It works over HTTP/1 and HTTP/2 by default, with rate limiting built in and experimental HTTP/3 available behind a feature flag. The real-time TUI is part of the point: you can watch a run progress and spot problems before it finishes instead of waiting for a final report. Teams that want a quick, repeatable benchmark without pulling in a heavy toolchain will find.