oha
TUI-based HTTP load generator for stress testing web servers. Measure request success rates, response times, and throughput with color-coded results in a single cross-platform binary.
oha is a terminal-based HTTP load generator designed for developers who need to evaluate web server performance under various traffic conditions. Built in Rust and powered by tokio and ratatui, it delivers real-time insights into how your applications handle concurrent requests.
Key capabilities include:
- Concurrent request handling - Generate and manage numerous HTTP requests simultaneously across multiple connections
- Detailed performance metrics - Track request success/failure rates, response times, server throughput, and latency patterns
- Real-time visualization - Watch metrics update live in an intuitive terminal interface with color-coded response time indicators
- Flexible configuration - Support for HTTP/1, HTTP/2, and experimental HTTP/3, custom headers, authentication, proxies, and request bodies
- Advanced features - Rate limiting, burst testing, latency correction, and URL pattern generation
- Cross-platform - Single binary works on Linux, macOS, and Windows
Whether you're optimizing locally or testing remote servers, oha helps identify performance bottlenecks and validate that your HTTP-based applications meet performance requirements. The color-coded output makes it easy to spot response time issues at a glance.
Features
Async I/OJSON output
Media
Pros
4- TUI-based interface for real-time results
- Measures request success rates, response times, and throughput
- Cross-platform single binary distribution
- Supports HTTP/1, HTTP/2, and experimental HTTP/3
Cons
1- Experimental HTTP/3 support may be unstable
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