Beterman 10 Seconds Challenge

10 seconds timer challenge with milliseconds and stop button

A simple, lightweight calculator that lives right in your browser toolbar. Perform basic arithmetic (+, -, *, /) instantly without leaving your current tab. ✨ Key Features - Quick Access: Click the calculator icon to open a compact popup interface. - Calculation History: Tracks your last 20 calculations automatically. Review past results at a glance. - Clear History Button: One-click to reset and start fresh. - Keyboard-Friendly: Uses mouse or trackpad clicks for seamless operation. - Persistent Storage: History saves across browser sessions using Chrome's secure local storage. - No Eval Hassle: Fully compliant with Manifest V3 CSP – safe, fast, and reliable calculations. 📱 Perfect For - Quick math during browsing, shopping, or work. - Students, professionals, and anyone needing on-demand calculations. - Offline use – works without internet. 🔧 How to Use - Pin to toolbar for one-click access. - Enter numbers/operators (2 + 3 =). - Results appear instantly with history update. - "C" clears current input; "Clear" wipes history. Privacy-focused – no data collection. Built for speed and simplicity.