Tiny HTTP load generator, an ApacheBench replacement
oha
HTTP load generator with a realtime terminal UI
About oha
oha is a small HTTP load generator written in Rust that sends load to a web application while showing a realtime terminal interface. It supports HTTP/1, HTTP/2 and experimental HTTP/3, rate limiting with latency correction, burst modes, dynamic URLs generated from regex, and text, JSON or CSV result output.
oha website preview
Live preview of github.com via the WordPress mShots service — it can take a few seconds to generate on a first visit.
oha: strengths & things to check
Strengths
- Completely free to use — this directory lists no paid plan for it.
- Covers load testing, http, benchmark, rust — see the focus areas listed in its key facts.
- Has 6 close alternatives in the same category on this page, so switching or comparing is easy.
Things to check
- Free tools can change their model or shut down — avoid locking critical work into it without an export path.
- Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
- It is one of 1288 tools in the Developer Tools category here — compare it against the alternatives below before you commit.
Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.
oha pricing
| Pricing model | Free — listed in this directory as a free tool, with no paid plan required to use it. |
|---|---|
| Free access | Yes — fully free |
| Current plan prices | Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale. |
| Official site | github.com |
oha key facts
- Category: Developer Tools
- Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
- Focus areas: load testing, http, benchmark, rust
- Official site: github.com
oha FAQ
How much does oha cost?
Free — listed in this directory as a free tool, with no paid plan required to use it. Current plans and prices are listed on the official site (github.com).
What is oha used for?
HTTP load generator with a realtime terminal UI Its focus areas in the Developer Tools category: load testing, http, benchmark, rust.
Where can I try oha?
On its official site, github.com — the Visit Official Site button above goes straight there.
oha vs alternatives
| oha | hey | Vegeta | xh | |
|---|---|---|---|---|
| Pricing | Free — listed in this directory as a free tool, with no paid plan required to use it. | Free — listed in this directory as a free tool, with no paid plan required to use it. | Free — listed in this directory as a free tool, with no paid plan required to use it. | Free — listed in this directory as a free tool, with no paid plan required to use it. |
| Focus areas | load testing, http, benchmark, rust | load testing, http, benchmark, cli | load testing, http, benchmark, go | http, cli, rust, open source |
| Official site | github.com | github.com | github.com | ducaale.com |
| Directory status | Listed | Listed | Listed | Listed |
Side-by-side from each listing's own directory data. Full alternative cards are below.
About the Developer Tools category
Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1288 tools. Alongside oha, it includes Vegeta, hey, Edit, SoapUI.
Alternatives to oha
Tools in the same Developer Tools category that share focus areas with oha — worth comparing before you commit:
HTTP load testing tool with constant request rates
Friendly fast HTTP client as a Rust rewrite of HTTPie ideas
Load testing and performance measurement for services
Load testing toolkit for APIs and services
Terminal API client that is free, offline and account-less
More in Developer Tools
Comparing tools in the Developer Tools category? These related listings are worth a look: Vegeta — HTTP load testing tool with constant request rates; hey — Tiny HTTP load generator, an ApacheBench replacement; Edit — Simple terminal text editor from Microsoft, inspired by MS-DOS Editor.
HTTP load testing tool with constant request rates
Tiny HTTP load generator, an ApacheBench replacement
Simple terminal text editor from Microsoft, inspired by MS-DOS Editor
API testing tool for SOAP, REST and GraphQL services
Friendly and fast command-line tool for sending HTTP requests
Native macOS code editor, open source and free forever