Open source
Apache JMeter
Open source load testing tool for web and other protocols
Load and ChaosApache load testing tool
6 tools in our directory are marked as best for Performance engineers, from 3 sections: Testing & QA (3), Monitoring & Observability (2) and Dev Utilities (1).

Open source load testing tool for web and other protocols

Check the bundle size and cost of any npm package before installing

Load testing platform with CI integrations and performance reports

Load testing software for checking app speed under peak traffic

Open source web performance testing with reports and metrics

Interactive flamegraph viewer for exploring performance profiles
Looking for something else? Browse the full directory.