oha
Metrics as of , from the GitHub or GitLab API of each repository. Refreshed monthly.
What oha is
oha is an HTTP load generator that sends load to a web application and shows progress in a realtime terminal UI. It is inspired by rakyll/hey and written in Rust on tokio. It runs from the command line against a URL or a file of URLs. Options set the request count, concurrent connections, duration and an overall queries-per-second limit. It supports HTTP/2, and HTTP/3 is an experimental build feature. Burst mode and URLs generated from regular expressions are available. Results print as text, JSON, CSV or quiet output. Packages exist for cargo, Homebrew, winget and Arch Linux, plus a Docker image. The README lists Linux, Windows and macOS as tested platforms.
Written from the project's README, read .
- Category
- Performance and load testing
- License
- MIT
- Language
- Rust
- Changelog
- Releases on GitHub
Repository metrics
Status
activeLast commit within 90 days of the fetch date.Computed from the last commit date and the archive flag on the fetch date. See the status rules.
Alternatives
Listed performance and load testing tools, same primary language first, then by GitHub stars. Each line gives one fact from the tool's documentation where it differs from oha's, with its source.
k6: Protocols: HTTP, WebSockets, gRPC, browser; more through extensions. source: README
Lighthouse: Test authoring format: Config file via --config-path; custom audits and gatherers written as extensions. source: README
Locust: Protocols: HTTP; other protocols and systems through user-written clients. source: README
Vegeta: Protocols: HTTP, with HTTP/2 to servers that support it and h2c. source: README
hey: Protocols: HTTP, including HTTP/2 endpoints. source: README
Apache JMeter: Protocols: HTTP(S), SOAP/REST, FTP, JDBC, LDAP, JMS, SMTP/POP3/IMAP, TCP, Java objects, native commands. source: README
Artillery: Protocols: HTTP, WebSocket, Socket.io, gRPC, Kinesis and more. source: README
Karate: Protocols: REST over HTTP, GraphQL, SOAP, WebSocket. source: Docs: Why Karate?
How to install
cargo install ohaQuestions
Is oha open source?
Yes. oha is released under MIT, an OSI-approved license, as reported by the GitHub API on 2026-09-22.
Is oha maintained?
On 2026-09-22, the last commit to the default branch was on 2026-09-10, so the listed status is active. Rule: Last commit within 90 days of the fetch date.
How many GitHub stars does oha have?
10,553 stars on 2026-09-22, from the GitHub API. The number is refreshed at each monthly update.
What language is oha written in?
The repository's primary language, as reported by the GitHub API, is Rust.
How do I install oha?
The README gives this command: cargo install oha
Sources
- GitHub REST API: repository, read
- GitHub REST API: commits, read
- GitHub REST API: latest release, read
- GitHub REST API: contributors, read
- README, read