UFO FPS Test: Monitor Smoothness
Real-time FPS and monitor refresh rate estimator. Compare motion at different frame rates and detect browser stutter.
Use this free UFO FPS Test tool to check how smoothly your screen displays motion. It helps you measure your current frame rate, estimated refresh rate, motion stutter, ghosting, and overall display performance directly from your browser.
This tool is useful for gamers, PC users, laptop owners, monitor buyers, streamers, and anyone who wants to know whether their screen is running smoothly at 60Hz, 120Hz, 144Hz, 165Hz, 240Hz, or higher. You do not need to install any software. Just open the page, start the test, and watch the moving UFO animation while the tool analyzes your display performance in real time.
What Is a UFO FPS Test?
A UFO FPS Test is a visual motion test that uses a moving object, usually a UFO-style animation, to help you see how your screen handles motion. Instead of only showing numbers, the test lets you compare different frame rates visually so you can notice differences in smoothness, blur, stutter, and ghosting.
FPS means frames per second. It tells you how many individual images your device is showing every second. A higher FPS usually creates smoother motion, especially when your monitor supports a higher refresh rate.
For example, a 30 FPS animation can look choppy compared to 60 FPS. A 120 FPS or 144 FPS display can feel even smoother, especially in fast games, scrolling, video editing, and competitive gaming.
How to Use the UFO FPS Test Tool
Using this online FPS test is simple. Follow these steps to get the most accurate result.
1. Close Unnecessary Apps and Browser Tabs
Before starting the test, close heavy programs, games, video editors, downloads, and extra browser tabs. These can affect browser performance and may cause temporary stutter during the test.
For the best result, keep only this page open while running the test.
2. Open the Tool and Start the Test
Click the Start Test button. The tool will begin tracking frames in real time and show the moving UFO animation across the screen.
You will see live performance data such as:
- Current FPS
- Estimated refresh rate
- Frame time
- Stutter warnings
- Motion smoothness
- Ghosting behavior
- Visual comparison between different frame rates
3. Watch the UFO Motion Carefully
Look at the moving UFO animation. A smooth display should show stable movement without sudden jumps, pauses, or irregular motion.
If the UFO appears to skip, freeze briefly, or move unevenly, your browser, graphics card, monitor settings, or system performance may be causing stutter.
4. Compare Different FPS Levels
The tool can show different motion speeds and frame rate comparisons. This helps you understand how 15 FPS, 30 FPS, 60 FPS, and higher frame rates feel visually.
This is especially useful if you want to compare gaming performance, monitor refresh rate, or motion clarity before changing your display settings.
5. Check for Stutter and Ghosting
The tool also helps detect motion issues such as:
Stutter: when motion is not consistent and the object appears to jump.
Ghosting: when the moving UFO leaves a visible trail behind it.
Blur: when the object becomes unclear while moving.
Judder: when motion feels uneven, especially during steady movement.
These issues can happen because of monitor limitations, browser performance, graphics settings, low refresh rate, high response time, or background processes.
What Does FPS Mean?
FPS stands for frames per second. It measures how many frames your screen displays every second. The higher the FPS, the smoother the motion can appear.
Common FPS levels include:
| FPS | What It Usually Feels Like |
|---|---|
| 15 FPS | Very choppy motion |
| 30 FPS | Playable but not very smooth |
| 60 FPS | Smooth for most users |
| 120 FPS | Very smooth motion |
| 144 FPS | Excellent for gaming |
| 240 FPS | Extremely smooth for competitive use |
However, FPS is only part of the experience. Your monitor refresh rate, response time, GPU performance, and browser stability also affect how smooth motion looks.
FPS vs Refresh Rate: What Is the Difference?
FPS and refresh rate are related, but they are not the same.
FPS is how many frames your device or browser is producing per second.
Refresh rate, measured in Hz, is how many times your monitor refreshes the image every second.
For example, if your monitor is 60Hz, it refreshes up to 60 times per second. If your game runs at 120 FPS but your monitor is only 60Hz, you may not see the full smoothness of 120 FPS.
If you have a 144Hz monitor, your screen can show much smoother motion than a standard 60Hz display, but only if your system and browser are actually delivering enough frames.
Why Your FPS Test May Show Lower Results
Sometimes the UFO FPS Test may show lower FPS than expected. This does not always mean your monitor is bad. Several things can affect the result:
Browser Performance
Some browsers handle animation better than others. If the result looks unstable, try using a modern browser and update it to the latest version.
Background Apps
Heavy apps running in the background can reduce performance. Games, screen recorders, downloads, antivirus scans, and many open tabs can cause frame drops.
Power Saving Mode
Laptops often reduce performance when running on battery. For a more accurate result, connect your laptop to the charger and use a high-performance power mode.
Wrong Display Settings
Your monitor may support 120Hz, 144Hz, or higher, but your system may still be set to 60Hz. Check your display settings and make sure the highest refresh rate is selected.
Hardware Limits
Older graphics cards, weak integrated graphics, or low-end processors may struggle with stable high-FPS browser animation.
How to Improve Your FPS Test Result
To get a smoother and more accurate result, try these tips:
- Close extra tabs and apps.
- Update your browser.
- Turn off battery saver mode.
- Connect your laptop to power.
- Set your monitor to its highest refresh rate.
- Update your graphics driver.
- Disable unnecessary browser extensions.
- Avoid running the test while recording your screen.
- Use fullscreen mode for a cleaner test.
- Restart your computer if the test shows unusual stutter.
These steps can help reduce false results caused by temporary system load.
Why This UFO FPS Test Is Useful for Gamers
Gamers need smooth motion because even small delays or stutters can affect gameplay. A stable FPS and a high refresh rate can make aiming, movement, and reaction time feel more natural.
This tool helps gamers check whether their screen is displaying motion correctly before playing. It can also help confirm if a new monitor is running at the expected refresh rate.
If you recently bought a 144Hz, 165Hz, or 240Hz monitor, this test can help you visually confirm that the motion feels smoother than 60Hz.
Why This Tool Is Useful for Monitor Testing
A UFO motion test is one of the easiest ways to check display quality because it makes screen behavior visible. Instead of only reading technical numbers, you can actually see how your monitor handles movement.
This can help you notice:
- Motion blur
- Ghosting trails
- Stutter
- Low refresh rate
- Uneven animation
- Poor response time
- Browser performance issues
It is a quick way to compare monitors, laptops, gaming screens, and external displays.
What Is Ghosting in a UFO FPS Test?
Ghosting happens when a moving object leaves a shadow-like trail behind it. This usually happens because the monitor pixels are not changing fast enough.
Some ghosting is normal on certain displays, but strong ghosting can make games, videos, and fast scrolling look blurry.
A higher refresh rate can improve motion clarity, but response time also matters. A monitor with poor pixel response may still show ghosting even if it has a high refresh rate.
What Is Stutter in an FPS Test?
Stutter is when motion becomes uneven. Instead of moving smoothly, the UFO may jump or pause for a fraction of a second.
Stutter can be caused by:
- CPU load
- GPU load
- Browser lag
- Background apps
- Low memory
- Unstable frame pacing
- Power-saving settings
- Screen recording software
If the tool shows a stutter warning, close other apps and run the test again.
Best Way to Test Your Monitor Refresh Rate
The best way to test your monitor refresh rate is to run the UFO Fps Test in a clean browser session with minimal background activity. Let the tool run for several seconds so it can estimate the refresh rate more accurately.
If your screen is set to 60Hz, the test will usually stay near 60 FPS. If your monitor is set to 144Hz and the browser supports it correctly, the animation should feel smoother and the measured values should be higher.
For best results, use the test in fullscreen mode and avoid moving the mouse or switching tabs while the measurement is running.
Frequently Asked Questions
What is a UFO FPS Test?
A UFO FPS Test is an online display motion test that uses a moving UFO animation to measure and visualize screen FPS, refresh rate, stutter, ghosting, and motion smoothness.
Is this UFO FPS Test free?
Yes, this tool is free to use online. You do not need to install any software or create an account.
Does this tool work on mobile?
Yes, the tool can work on many mobile browsers. However, results may vary depending on the phone, browser, battery mode, and screen refresh rate.
Why does my FPS stay at 60?
Your FPS may stay at 60 because your monitor is set to 60Hz, your browser is limited to 60 FPS, or your system is not using the higher refresh rate. Check your display settings and select the highest available refresh rate.
Can this test show 144Hz?
Yes, if your monitor, browser, graphics card, cable, and operating system are correctly configured for 144Hz, the test can help show smoother motion and estimate a higher refresh rate.
Why is the UFO animation not smooth?
The animation may not be smooth because of background apps, browser lag, low system performance, power saving mode, screen recording, or incorrect monitor settings.
What is a good FPS result?
For normal use, 60 FPS is smooth enough for most users. For gaming and fast motion, 120 FPS, 144 FPS, 165 FPS, or higher can feel much smoother if your monitor supports it.
What is ghosting on a monitor?
Ghosting is a visual trail that appears behind moving objects. It often happens when the monitor response time is slow or when motion handling is weak.
What is stutter in an FPS test?
Stutter is uneven motion where frames are delayed or skipped. It can make the UFO look like it jumps instead of moving smoothly.
Do I need a gaming monitor for this test?
No, you can use this test on any monitor, laptop, tablet, or phone. A gaming monitor may show smoother motion if it has a higher refresh rate and better response time.
Can browser extensions affect the test?
Yes. Some extensions can slow down animations or affect browser performance. If the result looks wrong, disable unnecessary extensions and test again.
Is FPS the same as Hz?
No. FPS is the number of frames displayed per second, while Hz is the refresh rate of your monitor. They work together, but they are not the same thing.
Why does my 144Hz monitor show 60Hz?
Your operating system may still be set to 60Hz, your cable may not support the higher refresh rate, or your browser may be limiting performance. Check your display settings and cable connection.
How long should I run the test?
Run the test for at least 10 to 20 seconds for a more stable reading. Avoid switching tabs or opening other apps during the test.
Can this tool improve my FPS?
No, the tool does not directly increase FPS. It helps you test, diagnose, and understand display performance so you can adjust your settings if needed.
Final Thoughts
The UFO FPS Test is a simple and practical way to check how smooth your screen really is. It helps you understand FPS, refresh rate, stutter, ghosting, and motion clarity without installing extra software.
Whether you are testing a gaming monitor, checking a laptop display, comparing frame rates, or troubleshooting screen stutter, this tool gives you a quick visual way to see how your display performs in real time.