Simple Calculator
Arithmetic done right, in the browser.
Clean and intuitive calculator application with basic arithmetic operations. Features responsive design and keyboard support for enhanced user experience.
Features
What it does.
Clean Button Grid
Numeric keypad and operators laid out in the standard calculator pattern — instantly familiar, no learning curve.
Keyboard Support
Full keyboard input — type numbers and operators directly, hit Enter to evaluate. No mouse required.
Expression Display
Live expression display shows the full current input before evaluation — no more guessing what you typed.
Clear & Backspace
AC clears the full expression; backspace removes the last character — full editing control over your input.
Tech Stack
Screenshots
See it in action.
Calculator with expression display and keyboard support
Clean implementation, pure JavaScript — Explore the code