Open source
Apache JMeter
Open source load testing tool for web and other protocols
Load and ChaosApache load testing tool
Alternatives to k6
12 tools like k6, chosen by what they do. About k6
Open source
Artillery
Load testing and Playwright end to end testing toolkit
Load and ChaosModern load testing toolkit
Curated
BlazeMeter
Cloud platform for performance, API and load testing
Load and ChaosCloud load testing platform
Open source
Gatling
Load testing platform with CI integrations and performance reports
Load and ChaosDeveloper load testing
Free trial
LoadRunner Professional
Load testing software for checking app speed under peak traffic
Load and ChaosEnterprise performance testing
Open source
Open source
Insomnia
Open source desktop client for testing HTTP, GraphQL and gRPC APIs
API ClientsOpen source API client
Freemium
Curated
Gremlin
Chaos engineering and resilience testing platform for services
Load and ChaosChaos engineering platform
Open source
TestCafe
End-to-end browser testing for Node.js, with no WebDriver needed
End-to-EndNode end to end testing
Open source
Nightwatch
Node.js end-to-end testing built on the W3C WebDriver standard
End-to-EndBrowser testing in Node
Open source
LitmusChaos
Open source chaos engineering platform for cloud native systems
Load and ChaosCloud native chaos engineering