Beterman 10 Seconds Challenge
Extension Actions
- Live on Store
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.