Provides a comprehensive list of international , including letters, numbers, and substitutes. View detailed descriptions of each flag. Take custom quizzes to test knowledge. Includes flashlight morse code examples and a minimalist design.
Customize settings to select favorite numbers. Simulate ball movement in a container using real physics 2D/3D . Generate random numbers. Pick numbers randomly. Adjust custom settings.
Convert text, , hexadecimal, and custom base numbers to each other. Perform base conversions with a minimalistic interface. Learn how different number systems work through interactive conversion. Encode messages in for fun or practical use.
