Infinite FPS Tester

What does an FPS Test measure?

FPS stands for Frames Per Second. It is a measure of how many distinct images your device can render and display in one second. A high FPS ensures that motion looks smooth and fluid. Our online FPS tester uses a high-frequency JavaScript loop to detect your browser's "heartbeat," allowing you to see if your monitor is actually running at its rated 60Hz, 120Hz, or 144Hz.

Why is Frame Rate Important?

Whether you are gaming or just scrolling through a long article, "stuttering" occurs when the FPS drops or becomes inconsistent. Our online frame rate checker tracks your "Min" and "Max" values to help you detect these performance dips. If your FPS diagnostic shows a low number, it might mean your GPU is under heavy load, or your browser's hardware acceleration is disabled in settings.

Testing High Refresh Rate Monitors

Modern gaming monitors often advertise 144Hz or 240Hz, but Windows or your browser might still be capped at 60Hz. By using our browser FPS tool, you can verify your active refresh rate instantly. If the number doesn't climb above 60, check your display settings. Our hardware refresh rate tester provides a reliable, neutral measurement that isn't influenced by gaming software or drivers.

Privacy and Animation Stress Testing

Our private FPS test uses an invisible canvas animation to keep the rendering engine active without requiring huge video files. This ensures a clean, reliable benchmark that respects your privacy. At 99tool.in, we believe that checking device performance shouldn't require intrusive permissions. Simply open the tool, and our local engine will report your hardware's capabilities in real-time.