FPS Tester

FPS Tester is a free, in-browser utility that measures your real-time frame rate and display performance without requiring any software installation. It provides instant FPS readings, frame time metrics, and visual comparisons across different refresh rates to help you understand how smoothly your browser and hardware are performing.

The tool includes a stress test lab where you can progressively load your system with animated objects and visual effects to see how your GPU handles increasing demands. Users can monitor baseline FPS, frame time in milliseconds, and performance drops under load to identify bottlenecks. The maker built it with Lovable.