MouseTester — Mouse Test in your browser

Overview

Quickly test left/right/middle clicks and the scroll wheel from your toolbar. More tools at mousetester.xyz.

MouseTester is a tiny mouse-test utility for your toolbar, powered by mousetester.xyz. WHAT IT DOES • Click the toolbar icon to open a popup with a live mouse diagram • Detects left, right, middle button presses, and scroll-wheel direction • Each press lights up the corresponding part of the mouse in real time ONE-CLICK ACCESS TO MORE TOOLS The popup also links out to the full toolbox on mousetester.xyz: • CPS (clicks per second) test • Double-click test — detect chatter / switch bounce • Polling rate test (Hz) • DPI accuracy test The links automatically open in your preferred language (English, 简体中文, 日本語, 한국어, Deutsch, Français, Español, Português). PRIVACY This extension does not collect, store, or transmit any data. It requests no permissions, has no background script, and does not read any web page. OPEN SOURCE & FREE Made by the team behind mousetester.xyz. Free and ad-free inside the extension itself.

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Details

Version
1.0.0
Updated
April 21, 2026
Flag concern
Size
24.39KiB
Languages
8 languages
Developer
Website
Email
9969507@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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