Mouse Tests
Mouse double-clicking or reporting the wrong DPI? Check the buttons for chatter, scroll wheel, polling rate, and click speed in the browser. No install.
Every mouse fault shows up somewhere different. A worn switch fires two clicks from one press. A scratchy scroll wheel skips a notch. A drifting sensor reports a DPI you never set. Each tool here isolates one of those, so you fix the part that's actually failing instead of guessing at the whole mouse.
A fault usually traces to one of three layers. The switch hardware, a driver or key binding, or the browser itself. The test points you to the right one, which matters because the wrong guess wastes effort, like cleaning a switch when a game binding was the real problem.
The browser only reads what it's allowed to read. Your polling rate and DPI come back as close estimates, not the numbers on the box, because the page watches movement instead of querying the firmware. They're still close enough to catch a mouse stuck at 125 Hz when it should hit 1000, or a sensor running about 10% off. And when your aim falls apart after switching games, the cause is almost always sensitivity, not the mouse. Match your cm/360 in the sensitivity converter before you order new hardware.
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// tests
Mouse Test
Test every mouse button and scroll wheel in your browser. Left, right, middle, and side buttons light up as they register. The counter moves one per notch.
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Butterfly Click Test
Test your butterfly clicking speed and read your CPS. Butterfly clicking drums two fingers on one button to nearly double your click rate.
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Jitter Click Test
Test your jitter clicking speed and see your CPS. Jitter clicking vibrates a tensed arm to spike your click rate, and this counter shows how fast you go.
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Kohi Click Test
Run the classic Kohi click test and measure your CPS over 10 seconds. The same click speed check old Minecraft PvP players used, scored as clicks per second.
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Right Click CPS Test
Measure how fast you can right click and see your CPS. This scores your right mouse button speed, the button that blocks and places blocks in Minecraft PvP.
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Mouse Drag Test
Hold and drag to catch your mouse button releasing mid-stroke. Switch to Angle Snapping mode and draw the guide to see if the sensor flattens your diagonal.
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// articles
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Jitter vs Butterfly vs Drag Clicking: Which One to Learn
Jitter, butterfly, and drag clicking compared: what each does to your CPS, which ones a server allows, and what each one costs your hand over time.
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What Is a Good eDPI? Benchmarks by Game and Role
A good eDPI depends on the game, not one magic number. See the pro ranges for Valorant, CS2, and Apex, and the one metric that carries across games.
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How to Test a Mouse: A Full Browser Checklist
Test every part of your mouse in the browser: buttons, scroll wheel, double-clicks, drag, polling rate, and DPI. A checklist with the right tool for each.
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Why Mouse Buttons Stop Working and How to Fix Them
Why a mouse button stops registering, how to tell a driver or binding problem from a dead switch, and the fixes for left, middle, and side buttons.
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How to Fix Mouse Double-Click Issues
Why your mouse double-clicks on a single press, how to confirm it, and the fixes that actually work: contact cleaning, switch replacement, and warranty.
// sensitivity
Valorant to CS2 Sensitivity Converter
Convert your Valorant sensitivity to Counter-Strike 2 and keep the same cm/360 so your aim feels identical. At 800 DPI, 0.4 becomes 1.273.
CS:GO to Fortnite Sensitivity Converter
Convert your CS:GO sensitivity to Fortnite and keep the same cm/360 so your aim feels identical. At 800 DPI, 2 becomes 0.079.
Fortnite to Apex Sensitivity Converter
Convert your Fortnite sensitivity to Apex Legends and keep the same cm/360 so your aim feels identical. At 800 DPI, 0.07 becomes 1.768.
Apex to Overwatch 2 Sensitivity Converter
Convert your Apex Legends sensitivity to Overwatch 2 and keep the same cm/360 so your aim feels identical. At 800 DPI, 2 becomes 6.667.
Warzone to Valorant Sensitivity Converter
Convert your Call of Duty: Warzone sensitivity to Valorant and keep the same cm/360 so your aim feels identical. At 800 DPI, 6 becomes 0.566.
Valorant to CS:GO Sensitivity Converter
Convert your Valorant sensitivity to CS:GO and keep the same cm/360 so your aim feels identical. At 800 DPI, 0.4 becomes 1.273.
FAQ
- How do I test my mouse in the browser?
- Open any tool on this page and start clicking. Press each button, spin the scroll wheel, and the result updates as you go, with nothing to install. The mouse test covers buttons and scroll; the double click, CPS, polling rate, and DPI tools each handle one job. Open the mouse test
- How do I know if my mouse is double-clicking?
- Single-click the button slowly, once. If the counter jumps by two, the switch contacts are worn and the mouse is adding a click you never made. Repeat ten to fifteen times, since a failing switch misfires at random. Run the double click test
- A button doesn't light up in the test. Is the mouse dead?
- Not always. If no site detects the press, suspect the switch, the cable, or the USB port. If the button works here but does nothing in a game, it's a binding or a driver, not the hardware. If only the side buttons stay dark, your browser is probably too old to report them.
- Can I check my polling rate and DPI in the browser?
- Yes, as a close estimate. The page measures how often your mouse reports and how far the cursor travels rather than reading the firmware, so the result lands near the real number without matching it exactly. That's enough to flag a mouse stuck at 125 Hz or a sensor that drifts. Test your polling rate
- Does this work with a wireless mouse?
- Yes, wired or wireless. If a wireless mouse registers nothing, check the dongle and swap the USB port. If it still reads nothing after a fresh battery, the buttons or receiver are likely gone.
- My mouse fails the test. What should I do next?
- It depends on what failed. For a double-clicking switch, raise the debounce time in your mouse software first, then clean or replace the Omron or Kailh switch if it keeps misfiring. A button with no response at all is usually mechanical. If the mouse is under warranty, record the test misfiring and claim it. How to fix a double-clicking mouse