FPS Test

The FPS Test is a powerful, browser-based diagnostic tool designed to measure exactly how many Frames Per Second your computer and web browser can render in real-time. 'FPS' refers to the frequency at which consecutive images (frames) are generated and displayed on your screen. The higher the FPS, the smoother the motion appears to the human eye. This tool utilizes HTML5 Canvas rendering and high-performance animation frames to provide an extremely accurate measurement of your system's current performance capabilities.

Understanding the relationship between FPS and your monitor's refresh rate (Hz) is crucial. Your monitor's physical refresh rate acts as a strict bottleneck for the maximum FPS you can actually see. If you are using a standard 60Hz office monitor, it can physically only draw 60 new images per second. Therefore, even if our tool or a high-end PC game is internally rendering at 300 FPS, you will only visibly perceive 60 of those frames. Browsers like Google Chrome and Safari automatically cap the `requestAnimationFrame` API to match your monitor's physical refresh rate to prevent unnecessary power draw.

Therefore, the maximum number you see in this FPS test is almost always indicative of your monitor's current refresh rate setting in your operating system. If you recently purchased a 144Hz or 240Hz gaming monitor but this test is stuck at 60 FPS, it means you have not enabled the higher refresh rate in your Windows Display Settings or Nvidia/AMD control panel. This tool is frequently used by gamers specifically to verify that their new high-refresh-rate monitors are actually functioning at their advertised speeds.

The test features a visual bouncing particle animation. These particles serve two purposes. First, they force your browser's rendering engine (and by extension, your GPU) to do active computational work and redraw the screen every frame, preventing the browser from idling. Second, the fast movement of the particles makes it incredibly easy to visually identify 'frame drops' or 'screen tearing.' If your FPS dips, the particles will appear to stutter or jump across the screen rather than gliding smoothly.

The statistics panel provides four key metrics. 'Current FPS' is a real-time measurement updated every second. 'Average FPS' tracks your performance over the last 30 seconds of the test, giving you a stabilized metric that smooths out minor background stutters. 'Maximum FPS' records the absolute peak frame rate achieved, while 'Minimum FPS' acts as a '1% low' tracker, highlighting the severity of any performance dips caused by background tasks on your computer.

Low FPS or severe stuttering in this test can be caused by several factors. Heavy background applications, outdated graphics drivers, or a browser that has hardware acceleration disabled can all cripple your frame rate. If you are scoring poorly, ensure that 'Use hardware acceleration when available' is checked in your browser's settings menu. This setting allows the browser to offload the heavy lifting of the canvas rendering from your CPU directly to your dedicated graphics card (GPU).

FPS is the most important metric in competitive gaming. In fast-paced shooters like Counter-Strike, Valorant, or Apex Legends, a higher FPS drastically reduces input latency (the time it takes for your mouse click to reflect on screen) and makes tracking fast-moving targets significantly easier. While human eyes do not see in 'frames', the brain can easily distinguish the difference in smoothness and latency between 60 FPS, 144 FPS, and 240 FPS.

All calculations are performed entirely locally on your machine using the browser's native Performance API. No data regarding your computer's hardware, performance metrics, or IP address is ever transmitted to a server. You can run this tool securely and infinitely to benchmark different browsers, test hardware acceleration settings, or verify that your monitor is outputting the correct refresh rate. Pair this with our Refresh Rate Test and Monitor Ghosting Test for a complete display hardware diagnostic.