How do I convert decimal to binary?
Select the Decimal ↔ Binary tab and type your number. The binary result appears instantly. For example, 42 decimal → 101010 binary. The conversion works both ways — type a binary number to get the decimal.
What is binary and why does it matter?
Binary (base-2) uses only 0 and 1. Every piece of data in a computer is ultimately stored in binary. Understanding binary is fundamental to programming, digital electronics, and computer science.
What is hexadecimal?
Hexadecimal (base-16) uses digits 0–9 and letters A–F. It's a compact way to represent binary — one hex digit equals exactly 4 binary bits. Hex is used in color codes (like #FF5733), memory addresses, and many programming contexts.
Can I convert text to binary?
Yes. Select the Text ↔ Binary tab. Each character in your text is converted to its 8-bit ASCII binary representation. For example, the letter 'A' becomes 01000001.
Can I convert multiple numbers at once?
Yes. For decimal and binary tabs, you can enter multiple space-separated values. Each is converted independently.
Is this converter free?
Yes — completely free. No signup, no account, runs entirely in your browser, no data stored. yhile.com is free forever.