JoeDog/siege

Health v2 · maintenance only

Adoption not part of the score

6213 stars · 398 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Siege is an open-source HTTP load testing and benchmarking utility written in C. It simulates many concurrent users hitting one or many URLs to stress test web servers and reports hits, throughput, response times, and status codes.

Use cases

• load test a web server with simulated concurrent users
• benchmark HTTP response times under stress
• stress test multiple URLs simultaneously
• verify a site can handle traffic spikes
• regression test web application performance
• measure transaction rate and concurrency of an HTTP endpoint

When to choose

• you need a lightweight CLI load tester for HTTP/1.0 and 1.1 endpoints
• you want to simulate many concurrent users with configurable delays
• you need transaction-level reporting of response times and status codes
• you want basic auth, cookies, and GET/POST support in a load test

When to avoid

• you need distributed load generation across multiple machines
• you require a GUI or scripted complex test scenarios
• you need protocol support beyond HTTP such as WebSocket or gRPC
• you want detailed browser-level performance metrics like rendering times

Facets

cli-tool · maturity active

load-testing benchmarking http-client testing web-development developer-tools performance testing cli cross-platform http-load-testing stress-testing regression-testing web-server c linux macos

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