Mouse diagnostics suite

Free Open Source Online Mouse Tester - Test Clicks and Scroll

Verify left, middle, and right clicks, check scroll direction, and reset instantly. No downloads. No signups.

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Live click counters Scroll direction Instant reset
3 Buttons tracked
2 Scroll states
100% Browser based
Close-up of a gaming mouse with RGB lighting for online mouse button and scroll testing
Click accuracy

Track every click with reliable counters.

Scroll checks

Confirm wheel behavior and direction instantly.

Primary tester

Mouse tester

Use the live tool below to validate clicks, scroll, and status.

View quick tips
Left Clicks: 0
Middle Clicks: 0
Right Clicks: 0
Scrolls: 0
Left: Released (Last: Never)
Middle: Released (Last: Never)
Right: Released (Last: Never)
Scroll: None (Last: Never)
Button accuracy
Left, middle, right click tracking
Scroll health
Wheel direction + count in real time
Instant feedback
Live status for every action
Runs local
No downloads or signups

Mouse diagnostics

Everything you need to verify your mouse

Check clicks, scroll, and responsiveness in a single focused panel.

Button testing

Track left, middle, and right clicks with precise counters.

Scroll diagnostics

Verify scroll wheel input and direction instantly.

Status display

See live pressed/released states for each input.

One-click reset

Clear counts and start over with a single action.

Simple workflow

Three steps to test your mouse

Run a full check in under a minute and confirm every input.

Close-up of mouse and keyboard electronics for testing mouse click inputs online
01

Click to begin

Use left, middle, and right clicks to verify response.

Close-up of computer mouse on wooden surface showing scroll wheel for online testing
02

Scroll to test

Spin the wheel to confirm direction and count.

Minimalist workspace desk setup ready to reset and repeat mouse testing
03

Reset and repeat

Clear counters and retest after adjustments.

Search Intent Cluster

Popular Mouse Checks

These browser-based mouse diagnostics cover general button checks, scroll-wheel troubleshooting, and suspicious double-click behavior.

Scroll Wheel Test

Verify up/down wheel input, inconsistent scrolling, and middle-wheel behavior.

Open page

Double Click Test

Check whether your mouse creates suspicious rapid double clicks or switch-bounce behavior.

Open page

More testing tools

Explore the full suite for keyboard, mouse, audio, and utilities.

Language support: All major tools are available in 8 languages - Arabic, Russian, Spanish, French, Portuguese, Japanese, German, and Korean. Select your language from the header menu to switch.

Keyboard
Keyboard Tester

Test keyboard functionality, detect ghosting, measure latency, check for stuck keys

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Arabic Keyboard Tester

Test Arabic keyboard layout and key response in an Arabic-first interface

Test Arabic layout
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Typing Speed Test

Measure WPM, accuracy, and typing consistency

Check typing speed
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Latency Checker

Test device and input latency in your browser

Measure latency
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Spacebar Speed Test

Count how many spacebar presses you can make in 5, 10, or 30 seconds

Test your spacebar
Keyboard
Key Repeat Rate Tester

Measure your keyboard key repeat rate (Hz) and initial delay (ms) in your browser

Test repeat rate
Keyboard
Typing Rhythm Fingerprint

Visualize your inter-keystroke timing patterns and get a rhythm consistency score

Analyze rhythm
Keyboard
Keyboard Switch Sound Analyzer

Classify your mechanical keyboard switches as linear, tactile, or clicky using mic FFT analysis

Analyze sound
Mouse
Mouse Tester

Check mouse buttons, scroll wheel, cursor movement, and responsiveness

Test your mouse
Mouse
Mouse Speed Tester

Measure your click speed (CPM or CPS) with timed tests

Check click speed
Mouse
Mouse Sensitivity / DPI

Test DPI, sensitivity, and tracking accuracy

Test DPI settings
Mouse
Mouse Trail

Visualize mouse movement trails and precision

View mouse trails
Mouse
Ghost Click Detector

Detect unintended or phantom clicks

Detect ghost clicks
Mouse
Mouse Polling Rate Test

Check if your gaming mouse runs at 125Hz, 500Hz, 1000Hz or higher

Test polling rate
Mouse
Mouse LOD Tester

Measure your gaming mouse lift-off distance to optimize sensor performance

Test LOD
Display
Screen Tester

Detect dead, stuck, or hot pixels on screens

Test your screen
Display
Monitor Refresh Rate Test

Detect if your display runs at 60Hz, 144Hz, 240Hz or higher

Test refresh rate
Display
Monitor Color Test

Check color accuracy, gradient banding and backlight uniformity

Test colors
Display
Backlight Bleed Test

Check your LCD monitor for backlight bleed, IPS glow, and clouding

Test for bleed
Display
Touch Screen Test

Test for dead zones, ghost touches and multi-touch on phone or tablet

Test touch screen
Display
PWM Flicker Test

Check if your monitor uses PWM backlight dimming that can cause eye strain

Test for flicker
Camera
Webcam Tester

Check webcam quality, resolution, and snapshots

Test your webcam
Audio
Mic Tester

Verify microphone input and audio levels

Test your microphone
Audio
Headphone / Speaker Tester

Test stereo channels and sound output

Test audio output
Utility
OCR Tool

Extract text from images quickly

Extract text now
Utility
QR Code Reader

Scan QR codes with camera or image upload

Scan QR codes
Utility
QR Code Generator

Create custom QR codes instantly

Create QR code
Utility
Password Generator

Create strong, secure passwords instantly

Generate password
Utility
WhatsApp Link Generator

Create clickable WhatsApp chat links

Generate chat link
Utility
WhatsApp Brand Links

Create branded WhatsApp links and QR codes

Create brand link
Utility
WhatsApp Sentiment Analyzer

Analyze chat sentiment and tone

Analyze sentiment
Utility
All Tools

Browse all hardware testing tools in one place

View all tools
Gaming
Gamepad Tester

Test PS5, Xbox, Switch and PC controller buttons, stick drift and triggers

Test controller
Gaming
Reaction Time Test

Measure how fast you react with a browser-based millisecond reflex test

Test reaction time

What This Online Mouse Tester Checks

This mouse tester verifies the inputs your browser can read directly: left click, middle click, right click, and scroll-wheel movement. It is useful when you want a fast answer about whether the main buttons and wheel are working at all.

If you came here for a more specific problem, use our focused scroll wheel test or double click test pages. They reuse the same working tools but match the exact issue people usually search for.

How to Test Your Mouse on This Page

  1. Click the left, middle, and right mouse buttons on the test canvas and confirm each counter increases once per press.
  2. Watch the live status boxes to make sure buttons return to Released after you let go.
  3. Roll the wheel up and down inside the canvas and verify the scroll counter plus direction status update smoothly.
  4. Use the reset button after any adjustment so you can compare before-and-after behavior cleanly.

Common Problems This Mouse Test Helps Confirm

  • Left, middle, or right clicks that fail to register consistently
  • Middle-click issues on heavily used wheels
  • Scroll wheels that skip, reverse, or stop updating cleanly
  • Buttons that appear to stay active longer than expected

For suspicious extra clicks from a single press, switch to the dedicated double click test. For movement, sensor, or sensitivity work, use the DPI tester or mouse trail test.

What This Page Does Not Measure

This page does not validate vendor-specific side buttons, DPI-profile buttons, polling rate, or raw sensor accuracy. Those features depend on browser support, mouse firmware, and manufacturer software. That is why KeyboardTester.Click splits related mouse problems into narrower pages instead of claiming one panel covers everything.

Mouse Tester FAQ

How do I test my mouse buttons online?

Click inside the mouse test area and press the left, middle, and right buttons. Each press should update the correct counter and status box immediately.

How do I test my scroll wheel?

Move the wheel up and down while the pointer is over the test area. The scroll counter should rise and the status line should show the latest direction.

Can this page detect double-click problems?

It can show suspicious behavior, but the better choice is the focused double click test, which logs rapid click intervals for switch-bounce checks.

Does the mouse tester work with wireless mice?

Yes. Wired, wireless, Bluetooth, and many trackpads work as long as the browser receives standard mouse events.

Is the mouse test private?

Yes. Input is handled locally in the browser and the page does not upload mouse data.

Continue testing your hardware with these related diagnostic tools.

Ghost Click Detector

Identify double-click issues and unintended phantom clicks caused by faulty switches.

Detect phantom mouse clicks →

Mouse DPI Tester

Measure actual DPI, test tracking accuracy, and find optimal sensitivity settings.

Check mouse DPI and sensitivity →

Click Speed Test

Test your CPS with timed click challenges. Perfect for Minecraft PvP and competitive gaming.

Measure clicks per second →

Mouse Trail Test

Track cursor movement patterns and test mouse precision with visual trails.

Visualize mouse movement →

Keyboard Tester

Verify all keys work, detect ghosting, and measure input latency with our free keyboard tester.

Test keyboard keys online →
View all testing tools

Online Mouse Tester Guide

Use this free online mouse tester to check mouse buttons, scroll wheel direction, and click accuracy in seconds.

Run a mouse button test

  1. Click inside the tester and press left, middle, and right buttons.
  2. Confirm each button highlights and the counter updates.
  3. Use Reset to clear results and start over.

Verify scroll wheel direction

  • Scroll up and down to check direction detection.
  • Watch the scroll indicator to confirm input.
  • Compare counts for consistent wheel response.

Check accuracy + responsiveness

  • Look for missed clicks or delayed response.
  • Test rapid clicks if you suspect double click issues.
  • Retest after cleaning or updating drivers.
Why is my mouse button not registering?

Make sure the page is focused, then test again. If it still fails, try a different USB port or device.

How do I test my mouse scroll wheel?

Scroll up and down and watch the direction indicator and count to confirm consistent wheel input.

Can I test double click issues?

Yes. Rapidly click the button and watch the counter for unexpected extra clicks.

Does the mouse tester work on laptops and touchpads?

It works with trackpads too, but external mice give the most accurate results.

How do I reset the mouse test?

Click Reset to clear the counters and start a fresh mouse test.

Is the mouse test private?

All testing runs in your browser and does not upload data.

Need more tools? Explore keyboard, audio, and display testers in the tools list below.