Current FPS vs Average FPS
Current FPS reflects a recent rolling window and can change quickly. Average FPS summarizes a longer test and is more useful when comparing identical workloads.
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GAMEPAD TESTER / PERFORMANCE STUDIO
FPS Test Online
Measure browser frames per second, inspect frame-time consistency, compare motion and run repeatable rendering workloads. A detailed FPS checker for desktops, laptops and mobile browsers.
Launch FPS Tester ↗01 / DEVICE ENVIRONMENT
● Browser readyYour Browser & Screen Information
Automatically reports accessible display and browser values. No permissions required.
CSS screen size—Not native panel pixels
Viewport—Browser CSS pixels
Device pixel ratio—Reported browser scale
Estimated cadence—From frame callback intervals
02 / LIVE FPS WORKBENCH
Ready to testReal-Time Browser FPS Test
Choose an animation and rendering workload. Start the test to record actual browser frame callback timing.
Current FPS—Recent frame intervals
Average FPS—Completed frames / time
1% Low FPS—Slowest 1% frame times
Frame Time—Latest interval in ms
P95 Frame Time—95th percentile · ms
Long Frames0Relative to observed cadence
Measurement note: This reads requestAnimationFrame callbacks. It measures the current webpage's rendering cadence—not the FPS of another game, actual GPU output, exact physical refresh rate or end-to-end input latency. Browser tabs in the background are throttled.
03 / FRAME-PACING ANALYSIS
Live FPS & Frame-Time Charts
See whether frames arrive consistently, rather than focusing only on one FPS number.
FPS Over Time
Last 120 samplesRolling FPS based on recent callbacks. Lower dips can coincide with uneven motion.
Frame Time
Milliseconds / frameA steady frame time is generally smoother than frequent spikes. No fixed FPS is assumed.
04 / MOTION COMPARISON
24 FPS vs 30 FPS vs 60 FPS
Observe different simulated animation update rates. Your browser's screen refresh still limits how these demonstrations appear.
24 FPS
Film-style steps
30 FPS
Moderate motion
60 FPS
Finer motion steps
These rows deliberately change object position at 24, 30 and 60 updates per second. They are illustrations, not measured monitor refresh rates or independent video streams.
05 / REPEATABLE PERFORMANCE RUN
Not runFour-Level FPS Benchmark
Compare sustained browser performance as this page's Canvas workload increases.
01Light—~50 elements
02Medium—~160 elements
03Heavy—~500 elements
04Extreme—~1,200 elements
Each tier lasts 6 seconds (24 seconds total, plus scheduling overhead). Tier results are the average browser callback FPS while that workload is rendered. They are not comparable to native-game benchmarks.
06 / VISUAL GUIDE
How to Measure FPS and Frame-Time Consistency
Frames per second tells you how frequently your browser produces animation updates. Frame time explains how much time passes between those updates.
- Close unnecessary tabs and leave the test window visible.
- Choose a repeatable scene, workload and duration.
- Run at least two sessions under the same settings.
- Compare average FPS, 1% lows and frame-time spikes.
Use stable power and display settings when comparing runs, particularly on laptops.
IMAGE SECTION 01
FPS & Frame-Time TestingPaste your image URL into data-image-url
07 / SMOOTHNESS GUIDE
How to Compare Smooth Motion and Screen Refresh
Higher frame rates can make motion appear smoother, but display refresh, browser scheduling and rendering consistency also influence the result.
- Watch the simulated motion rows at the same time.
- Choose the moving-object scene and start a timed FPS run.
- Look at the frame-time graph for unusually long intervals.
- Test again with a lower rendering workload if timing is uneven.
Use a dedicated display measurement tool if your goal is to characterize the hardware's actual refresh rate or pixel response.
IMAGE SECTION 02
Motion & SmoothnessPaste your image URL into data-image-url
08 / HISTORY & DOWNLOADS
FPS Test History and Reports
Compare recent local sessions and save your results for later reference.
| Run | Scene / Workload | Average FPS | 1% Low | P95 ms | Long frames | Duration |
|---|---|---|---|---|---|---|
| Run an FPS test to populate your session history. | ||||||
0 sessionsUp to 12 recent sessions stored in this browser
09 / FPS TEST EXPLAINED
What Your FPS Results Actually Mean
1% Low FPS
This tool averages the slowest 1% of measured frame intervals and converts that mean interval to FPS. Meaningful results require enough frames and are not identical to every game benchmark's 1% low method.
Frame Time and P95
Frame time is the gap between animation callbacks. P95 means 95% of sampled intervals were at or below that value. Spikes can make motion look inconsistent.
Long Frames and Stutter
The checker counts intervals substantially longer than a fast observed baseline. They are possible frame-pacing interruptions, not a direct hardware dropped-frame counter.
Display Refresh vs Browser FPS
A 144 Hz panel and a page producing 90 FPS are different quantities. Browser timing alone cannot prove the panel's native refresh rate or the frames produced by other applications.
Canvas Workload vs Game Performance
Canvas drawing exercises a specific browser workload. Native games use different engines, GPU APIs and rendering paths, so this test cannot predict in-game FPS.
10 / TROUBLESHOOTING
Why Is My Browser FPS Low or Unstable?
Low FPS Across All Tiers
Check browser updates, device power-saving mode and hardware acceleration. Close unrelated intensive applications and repeat the same workload.
Large Frame-Time Spikes
Other tabs, notifications, extensions, garbage collection and background activity can delay animation callbacks. Compare repeated runs rather than one isolated spike.
Different Results in Another Browser
Browser engines and GPU acceleration settings can change Canvas performance and animation scheduling. Record the browser and test settings with your result.
Phone or Laptop Becomes Warm
Stop intensive testing and let the device return to normal operating conditions. High workloads increase processing demand, so short test durations are better for routine checks.
11 / FREQUENTLY ASKED QUESTIONS
FPS Tester FAQs
How do I test my FPS online?
Choose an animation, a workload and a duration, then select Start FPS Test. The tool measures the browser's animation callback timing while drawing the selected scene and reports FPS and frame-time statistics.
Is this a real gaming FPS benchmark?
No. It is a real measurement of this browser page's animation performance, not an FPS reading from a separate game. Native games may perform very differently.
Can this tell me if my monitor is 60 Hz, 120 Hz or 144 Hz?
It can show an estimated animation callback cadence, which often tracks display refresh, but browsers can throttle callbacks or change scheduling. It cannot certify the physical panel refresh rate.
What is a good FPS score?
For this tool, judge consistency and compare average FPS across runs with identical settings. A higher number generally means more browser updates, but the appropriate rate depends on your display and workload.
What does 1% low FPS mean?
It summarizes the slowest frame intervals. A lower 1% low compared with average FPS can indicate uneven pacing. This page calculates it from the slowest 1% of sampled browser frame intervals.
What causes FPS drops?
Heavy rendering, CPU competition, GPU limitations, power saving, thermal management, browser extensions and other background activities can all affect the test.
Does the FPS Test work on Android and iPhone?
Yes, in current mobile browsers supporting Canvas and requestAnimationFrame. Mobile browsers can throttle animation and intensive modes may use more power, so start with Light or Medium.
Can I compare 24, 30 and 60 FPS motion?
Yes. The motion comparison shows three deliberately quantized update rates. They are simulated demonstrations displayed within your browser's actual rendering cadence.
Why does the FPS test stop when I change tabs?
Browsers typically slow or pause animation callbacks in hidden tabs. This tester stops a run instead of including long hidden-tab pauses in its results.
Is FPS data uploaded to a server?
This widget processes measurements locally and stores only recent sessions in your browser when storage is available. It has no dedicated server upload. Other website scripts or analytics may have separate policies.