⚡ Free browser-based performance testing tools

Test your FPS, refresh rate, and gaming response in seconds.

FPSTests.io helps you understand how smooth your device feels in real use. You can measure live FPS, average FPS, 1% low FPS, frame time, refresh rate, reaction time, clicks per second, keyboard response, mouse polling rate, screen size, and display quality without installing any software.

It is made for gamers, laptop users, PC builders, monitor buyers, streamers, students, developers, and anyone who wants quick performance information from a clean and easy testing dashboard.

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144FPS

1% LowStutter insight

Frame TimeSmoothness check

HzDisplay refresh

All-in-one FPS, display, and gaming input test tools

Many FPS websites only show a single number. FPSTests.io gives you a better testing experience with multiple browser tools, useful explanations, troubleshooting tips, and result-focused content on every page.

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FPS Test

Measure live FPS, average FPS, minimum FPS, maximum FPS, 1% low FPS, frame time, and stability with an adjustable browser stress test.

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Refresh Rate Test

Check your monitor refresh rate in Hz, frame interval, and display smoothness directly from your browser.

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Reaction Time Test

Measure how quickly you respond to a visual signal and compare your result for gaming and reflex practice.

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CPS Test

Test your clicks per second with a simple click-speed challenge for gaming mice, touchpads, and mobile screens.

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Keyboard Tester

Press keys and instantly check whether your keyboard has stuck, missing, delayed, or unresponsive keys.

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Mouse Polling Rate Test

Estimate your mouse polling rate in Hz by moving your pointer and checking sample frequency.

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Screen Size Test

Find your screen resolution, browser viewport, device pixel ratio, orientation, and color depth.

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Dead Pixel Test

Use full-screen solid colors to inspect dead pixels, stuck pixels, display marks, and panel issues.

What is an FPS test?

An FPS test measures how many frames your device can render every second. FPS stands for frames per second. A higher FPS usually means smoother motion, less visible lag, and a better experience in games, animations, videos, and browser-based graphics.

However, FPS is not only about one high number. A device may reach high peak FPS but still feel uneven if the frame timing is unstable. That is why our FPS tool also shows average FPS, minimum FPS, maximum FPS, 1% low FPS, frame time, and stability information.

The test runs inside your browser, so it is best for checking browser rendering smoothness, monitor behavior, power mode differences, and quick comparisons between devices or settings.

Why FPSTests.io is useful

No installation: open the website and run the test directly.
No signup: all tools are free to use without creating an account.
More than FPS: test display, input, mouse, keyboard, and screen details.
Easy results: numbers are explained in simple wording.
Mobile responsive: works on desktop, laptop, tablet, and mobile browsers.
Privacy-friendly: most tests calculate results locally in your browser.

FPS ranges and what they mean

FPS results can feel different depending on your monitor refresh rate, game type, screen size, browser, and hardware. Use this table as a simple guide when reading your FPS test result.

FPS Range	Experience	Best For
24–30 FPS	Basic motion. It may feel choppy for fast games.	Video playback, simple browsing, low-end devices.
45–60 FPS	Smooth for general use and casual gaming.	Most laptops, phones, casual games, normal browsing.
90–120 FPS	Very smooth motion with better response feel.	High refresh monitors, racing games, action games.
144–165 FPS	Excellent smoothness when your display supports it.	Competitive gaming, esports monitors, fast shooters.
240+ FPS	Ultra-high frame rate with very low motion delay.	Advanced competitive setups and high-end hardware.

FPS, refresh rate, and frame time explained

FPS tells you how many frames are rendered per second. Refresh rate tells you how many times your monitor can refresh per second. Frame time shows how long each frame takes to render, usually measured in milliseconds.

For example, 60 FPS is about 16.67 ms per frame, 120 FPS is about 8.33 ms per frame, and 144 FPS is about 6.94 ms per frame. Lower frame time usually feels more responsive, especially in fast games.

Your best experience comes when FPS, frame time, and monitor refresh rate work together. A 144Hz display feels best when your device can produce stable frames near that range.

What is 1% low FPS?

1% low FPS is a helpful smoothness metric. It shows how your lowest-performing frames behave during the test. If your average FPS is high but your 1% low FPS is much lower, you may notice stutters, drops, or uneven motion.

This matters because smooth gaming is not only about maximum FPS. Stable FPS with strong 1% lows often feels better than unstable FPS with high peaks.

If your 1% low result is poor, try closing background apps, disabling battery saver, enabling hardware acceleration, updating graphics drivers, and testing again after your device cools down.

How to get the most accurate test result

Close heavy apps, extra browser tabs, downloads, and screen recorders before testing.
Use a modern browser such as Chrome, Edge, Firefox, or Safari.
Enable hardware acceleration in your browser when possible.
Keep your laptop plugged in and turn off battery saver for performance testing.
Run the test more than once and compare average FPS and 1% low FPS.
Test in normal mode and then again after changing your display or power settings.
For refresh rate checks, make sure your monitor is set to its highest Hz in system display settings.

Who should use these tools?

Gamers can use the FPS test, reaction time test, CPS test, and mouse polling rate test to understand responsiveness before playing. Monitor buyers can use the refresh rate test and dead pixel test to verify a new screen. Developers can use FPS and frame-time results to check animation smoothness in the browser.

Students and normal users can use the tools to understand their laptop, mobile, or PC performance in simple words. No technical setup is required.

Common reasons for low FPS

Too many background apps or browser tabs open.
Power saver mode limiting CPU or GPU performance.
Browser hardware acceleration turned off.
Old graphics drivers or outdated browser version.
High device temperature causing thermal throttling.
Low-end GPU, weak integrated graphics, or limited RAM.
External monitor connected at the wrong refresh rate.

Frequently asked questions

Is FPSTests.io free?

Yes. FPSTests.io is free to use. You can run FPS, refresh rate, reaction time, CPS, keyboard, mouse polling, screen size, and dead pixel tests without signing up.

Is this FPS test accurate?

It is accurate for browser rendering performance because it uses browser animation timing. It is useful for checking smoothness, display behavior, and performance changes, but it should not replace full in-game benchmark software.

Why is my FPS lower than my monitor refresh rate?

Your FPS can be lower because of browser limits, weak hardware, battery saver, background apps, old drivers, thermal throttling, or hardware acceleration settings. Your monitor may support 144Hz, but your device still needs to render enough frames.

What is better: high FPS or stable FPS?

Stable FPS is usually more important than short high peaks. A smooth 120 FPS with strong 1% lows can feel better than unstable 180 FPS with sudden drops.

Can I use these tests on mobile?

Yes. The website is responsive and works on modern mobile browsers. Mobile results may change depending on battery level, refresh rate mode, browser limits, and device temperature.

Does the website collect my FPS results?

The testing tools are designed to run in your browser. Contact form messages are stored only when you choose to submit them. Read the privacy policy for more details.

Why does FPS change every time I test?

FPS can change because your device load changes. Background apps, browser tabs, battery mode, temperature, and animations on the page can all affect results.

Can this website improve my FPS?

The website measures performance and gives guidance. It cannot directly increase FPS, but the results can help you identify whether settings, power mode, browser performance, or hardware limits are affecting smoothness.