Mouse Test Lab
Under reviewFree in-browser tools for mouse buttons, scroll, CPS, DPI.
Free, no-install browser tools that test mouse buttons, scroll, double-click, clicks-per-second, polling rate, and DPI. Results stay on your device.
Built by Liu Tenglong · Productivity · Free
Coming soon on Launch Llama Tools
Mouse Test Lab is a Community listing on Launch Llama with 0 total upvotes, founded by Liu Tenglong who joined in Nov 2026, compared against 5 alternatives.
Community listing
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Liu Tenglong (Joined Nov 2026)
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Compared against 5 alternatives
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Free, no-install browser tools that test mouse buttons, scroll, double-click, clicks-per-second, polling rate, and DPI. Results stay on your device.
About
Mouse Test Lab is a free set of in-browser tools for checking a computer mouse. It is for PC gamers, people buying a used mouse, and anyone whose mouse has started double-clicking, skipping, or missing buttons. On the homepage you can test left, right, middle, and side buttons plus the scroll wheel, and it flags double-click bounce. Related tools measure clicks-per-second, polling rate up to 8000 Hz, real DPI, scroll-wheel skips, aim accuracy, and common click techniques. Nothing to install or sign up for, and results stay on your device. In Chrome and Edge the polling-rate test can read raw mouse events, so readings above 1000 Hz are possible; Firefox and Safari group events per frame and read lower.
Key Features
- Highlights each mouse button and scroll direction as the browser receives it
- Flags double-click faults when two presses land under 50 ms apart
- Shows a grey-zone warning for 50, 80 ms gaps before blaming the switch
- Measures polling rate and clicks per second in real time
- Logs every input with timing and lets you download the results as a report
- Runs in the browser with no download, sign-up or data upload
Use Cases
- Checking a used mouse for dead or double-clicking buttons before buying it
- Diagnosing a jumping scroll wheel or a side button that has stopped responding
From the founder
Who it's for
“PC gamers, people buying a used mouse, and anyone whose mouse has started double-clicking, skipping, or missing buttons.”
About me
“Liu Tenglong. Mouse Test Lab is a free set of in-browser tools for checking a computer mouse. On the homepage you can test left, right, middle, and side buttons plus the scroll wheel, and it flags double-click bounce. Related tools measure clicks-per-second, polling rate up to 8000 Hz, real DPI, scroll-wheel skips, aim accuracy, and common click techniques. Nothing to install or sign up for, and results stay on your device. In Chrome and Edge the polling-rate test can read raw mouse events, so readings above 1000 Hz are possible; Firefox and Safari group events per frame and read lower.”
Who it is for
- People buying a used mouse who want to check every button first
- Gamers troubleshooting a double-clicking or unresponsive mouse
Pricing
Mouse Test Lab is free to use. See the website for details.
FAQ
Do I need software to test my mouse buttons?
No. This browser-based mouse button test sees the same clicks, wheel steps and side-button presses that your games receive, so there is nothing to install.
How do I check if my mouse click is working?
Click inside the test area. If the button lights up on the diagram, the click reached your computer. If it lights up yellow, it registered twice.
Is there a way to test my mouse?
Yes. Open this page, press every button inside the test area and scroll the wheel both ways. Each part of the diagram turns green when your browser receives it, and you get a pass or fail result. No download is needed.
What is a mouse tester?
A mouse tester is a tool that shows whether each mouse button and the scroll wheel send input correctly. This one also checks for double clicks, the most common mouse fault.
How can I test my mouse click issues?
Click the left and right buttons here at a normal pace. If a button turns yellow, it registered two clicks within 80 ms. Then use the double click test for a detailed check with millisecond timings.
How can I test for mouse stuttering?
Stutter usually comes from tracking, not buttons. Check your polling rate, move a wireless receiver closer to the mouse, avoid USB hubs and clean the sensor on the underside.
Why are my mouse side buttons not working here?
Gaming mouse software often remaps side buttons to other functions, so the browser never sees them. Reset them to Back and Forward in your mouse software. Safari also does not report side buttons to websites.
Does this mouse test work with wireless and Bluetooth mice?
Yes. The test reads whatever input your browser receives, whether the mouse is wired, uses a USB receiver or connects over Bluetooth.
Alternatives
ClickTrayThe auto-clicker that doesn't feel like 2010
ExamClutchBuilt for college students taking web quizzes: reads multiple choice, multi-select, dropdown, and fill-in-the-blank questions on Canvas, Brightspace, and Moodle, filling answers in about 30 seconds.More in Productivity
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