locustio/locust

Health v2 · maintenance only

Adoption not part of the score

28104 stars · 3234 forks observed · 2026-08-28

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

Locust is an open-source load and performance testing framework where test scenarios are written in plain Python code. It supports distributed load generation across multiple machines and provides a web-based UI for real-time monitoring of throughput, response times, and errors.

Use cases

• load test my http api with thousands of concurrent users
• write performance tests in python instead of a dsl
• run distributed load tests across multiple machines
• simulate user behavior scenarios for stress testing
• monitor response times and throughput during load tests
• benchmark a websocket or socketio service
• version control my load test scenarios as code

When to choose

• you want load tests as maintainable Python code in your IDE and version control
• you need to simulate hundreds of thousands of concurrent users with distributed workers
• you need to test protocols beyond HTTP via its pluggable architecture
• you want real-time web UI monitoring and exportable results

When to avoid

• you need a no-code GUI-only load testing tool for non-developers
• your team has no Python knowledge and prefers record-and-replay tools
• you need a lightweight single-command smoke test without writing code

Facets

framework · maturity active

load-testing benchmarking http-client testing testing performance developer-tools web-development python cli cross-platform load-testing performance-testing gevent distributed-load-generation web-ui scalable-testing web-server

Member repositories

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