Everything you need to performance test your applications. Free tools, code examples, and best practices for every testing scenario.
Load test your REST and GraphQL APIs with up to 200 virtual users for free. Real-time metrics, JavaScript scripting, and instant results.
Learn more →Stress test your website with up to 200 virtual users for free. Find performance bottlenecks and ensure your site handles traffic spikes.
Learn more →Looking for a k6 Cloud alternative? loadtest.dev offers the same k6 scripting with generous free limits — 200 VUs, 5 minute tests, no credit card.
Learn more →Run HTTP load tests against any endpoint. Support for GET, POST, PUT, DELETE with custom headers and payloads. Free for up to 200 VUs.
Learn more →Benchmark your REST API performance with precise p50, p95, p99 latency metrics. Compare endpoints and track regressions over time.
Learn more →Load test your GraphQL API with realistic queries and mutations. Measure resolver performance and find N+1 query bottlenecks.
Learn more →Load test WebSocket servers with hundreds of concurrent connections. Validate message throughput, latency, and connection stability.
Learn more →Test how your application handles sudden traffic spikes. Simulate flash sales, viral moments, and DDoS-like scenarios safely.
Learn more →Run extended soak tests to find memory leaks, connection pool exhaustion, and performance degradation over time.
Learn more →Use load testing for infrastructure capacity planning. Determine how many users your servers can handle and when to scale.
Learn more →Complete performance testing checklist: test types, metrics to measure, tools to use, and common mistakes to avoid.
Learn more →Load test gRPC services with k6. Measure unary and streaming RPC performance under concurrent connections.
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