The tool you need, right here

Count characters with and without spaces, words, lines and bytes in real time.

Convert text to UPPER, lower, Title Case, Sentence case, camelCase, snake_case or kebab-case.

Convert between pyeong (평), the Korean unit of floor area, and square meters. 1 pyeong ≈ 3.3058 m².

Convert length, weight, temperature, area and volume units, including traditional Korean units.

Convert between major currencies — USD, EUR, JPY, KRW, CNY and more — using reference exchange rates updated daily.

Calculate X% of a number, what percent A is of B, and percentage change.

Convert between JPG, PNG and WebP, resize and compress images right in your browser. Files are never uploaded.

Create QR codes for URLs, text and more, and download them as PNG or SVG. Free, never expires.

See your public IP address and browser details.

Play European and American roulette with virtual chips and simulate betting strategies like Martingale, Paroli and Fibonacci thousands of times. No real money involved.