Define user behaviour with Python code, and swarm your system with millions of simultaneous users

What is Locust?

Locust is an easy-to-use, distributed, user load testing tool. Intended for load testing web sites (or other systems) and figuring out how many concurrent users a system can handle.

Locust is a tool in the Load and Performance Testing category of a tech stack.

Locust is an open source tool with 10.1K Github Stars and 1.45K Github Forks. Here’s a link to Locust's open source repository on Github

Who Uses Locust?

10 companies use Locust including confirm IT solutions, Mirumee Software, and Cherry.

Locust integrates with

Why people like Locust

Here’s a list of reasons why companies and developers use Locust.



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Locust's Features

  • Define user behaviour in code
  • Distributed & scalable
  • Proven & battle tested

Locust's alternatives

  • Gatling - open-source load testing framework based on Scala, Akka and Netty
  • Loader.io - Simple Cloud-based Load Testing
  • AWS Device Farm - Test your app on real devices in the AWS Cloud
  • BlazeMeter - The Load Testing Platform for Developers
  • Blitz - Load testing for websites, web apps, and REST APIs

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