Loader.io vs Locust: What are the differences?
Loader.io: Simple Cloud-based Load Testing. Loader.io is a free load testing service that allows you to stress test your web-apps/apis with thousands of concurrent connections; Locust: Define user behaviour with Python code, and swarm your system with millions of simultaneous users. 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.
Loader.io and Locust can be primarily classified as "Load and Performance Testing" tools.
Locust is an open source tool with 10.4K GitHub stars and 1.5K GitHub forks. Here's a link to Locust's open source repository on GitHub.
According to the StackShare community, Loader.io has a broader approval, being mentioned in 14 company stacks & 8 developers stacks; compared to Locust, which is listed in 10 company stacks and 5 developer stacks.