Locust is an open-source load testing tool designed for developers needing a straightforward solution for simulating user traffic. With its unique approach, users can define behaviors using Python code, eliminating the complexity of traditional UI-based tools. This allows for a seamless setup and execution of load tests across multiple machines, making it capable of simulating millions of concurrent users, which is crucial for performance testing in various environments.

The tool is subscription-based and caters to a wide audience, including mid-size businesses, small enterprises, nonprofits, and startups. Locust's user-friendly installation via PyPI and pip, combined with its comprehensive documentation, ensures that users can quickly get started. Furthermore, it integrates with services like Apolo and Testable, enhancing its utility in diverse testing scenarios.