FPS Checker
Measure how smoothly your browser renders motion. Watch a live animation, compare it against common frame-rate targets, and spot stutter, unstable pacing, or dropped frames.
How the FPS checker works
The tool animates a scene in your browser and measures how often frames are rendered over time.
Run the animation
Start the checker to render motion continuously with requestAnimationFrame.
Measure frame pacing
The tool samples frame timing, current FPS, average FPS, and frame-time consistency.
Interpret smoothness
Compare your result with common targets such as 30, 60, 90, or 120 FPS to judge motion quality.
What different FPS levels feel like
FPS changes how continuous motion appears to the human eye.
Slideshow-like motion
At 1 FPS, motion is broken into isolated still images. It feels like a sequence of screenshots rather than a continuous video.
Jerky or freezing motion
At 10 FPS, movement becomes recognizable but still looks choppy. This is where video calls and animations start to feel uncomfortable.
Almost smooth
At 20 FPS, motion starts to feel reasonably continuous, but fast movement still loses detail and responsiveness.
Smooth everyday experience
60 FPS is the common benchmark for smooth browsing, animation, UI transitions, and many real-time video experiences.
Why FPS matters
Higher and more stable FPS usually means smoother, more comfortable motion.
Video calls and live streaming
Lower FPS leads to jerks and freezes. Higher FPS helps motion look natural and more real-time during calls, broadcasts, and camera previews.
Gaming and cloud gaming
Interactive content feels better when frames arrive consistently. FPS affects smoothness, responsiveness, and perceived input delay.
Animation and UI validation
Use the checker to see whether your browser and device can keep motion-heavy interfaces smooth under normal conditions.
Device comparison
Compare desktop, laptop, tablet, and phone performance to understand which device handles motion best in your setup.
Browser comparison
Run the same test in different browsers to spot rendering differences, power-saving behavior, or extension-related slowdowns.
Troubleshooting stutter
If scrolling or animation feels off, an FPS checker helps confirm whether dropped frames and unstable pacing are part of the problem.
What this checker gives you
Use it as a quick browser-based motion smoothness benchmark.
Live FPS reading
Track the current frame rate in real time while the animation is running.
Average, minimum, and maximum FPS
See a clearer performance picture instead of relying on a single number.
Frame time and dropped-frame estimates
Understand whether motion is smooth, uneven, or missing expected frames.
Target FPS comparison
Compare results against common refresh targets like 30, 60, 90, 120, and 144 FPS.
Fullscreen animation mode
Make judder and stutter easier to spot by testing with a larger animated scene.
No installation required
The checker runs directly in your browser with no downloads, drivers, or plugins.
FPS checker FAQ
Quick answers about frame rate, smoothness, and what this tool measures.
What does FPS mean?
FPS stands for frames per second. It tells you how many unique images are rendered every second, which directly affects how smooth motion looks on screen.
What is a good FPS result?
For general UI and video, 24 to 30 FPS is usually acceptable. For smoother scrolling, animation, gaming, and live previews, 60 FPS or higher feels much better.
Why can FPS drop even with a good monitor?
Low FPS can come from browser load, background tabs, thermal throttling, graphics settings, battery saver mode, or a weak device. The screen is only one part of the chain.
Does this test measure monitor refresh rate exactly?
No. It measures how quickly your browser can render animation frames in real conditions. That makes it useful for motion smoothness checks, but it is not a hardware-level refresh rate test.
Why should I use fullscreen mode?
Fullscreen reduces distractions and lets the animation use more screen space, which makes stutter, uneven pacing, and dropped frames easier to notice.
Can I use this on mobile?
Yes. The checker works in modern mobile browsers too, so you can compare FPS behavior across phones, tablets, and desktops.
Technical notes
A few practical details help you read FPS results more accurately.