k6-alternative

Open-source API client with a native C++ load-testing engine. Postman-style requests + k6-level load tests in one local app

Load testing that keeps measuring when the target freezes: a 1-second stall shows up as ~1 s, not as 4 ms. Refuses a verdict when the run didn't measure what it claimed. Open arrival model, HDR histograms, HTTP/GraphQL/Kafka/AMQP. Single binary, YAML scenarios, exit code for CI.

Load testing for Kotlin. Times each request from when it was scheduled to start, checks the generator kept up, and runs scenarios as plain values on virtual threads.