Convert between Decimal, Binary, Octal, and Hexadecimal
There are 10 types of people in the world: those who understand binary, and those who don't. The **Number System Converter** bridges the gap between human math (Decimal) and machine logic (Binary/Hex). Essential for developers, it simplifies tasks from setting CSS colors to debugging memory registers.
Type a number in any field (e.g., "255" in Decimal).
Watch all other fields update instantly (Binary: 11111111).
Click copy icon to use the converted value.
Reset to convert a new number.
Supports bases 2, 8, 10, and 16. **Binary (Base 2)**: 0s and 1s. **Octal (Base 8)**: 0-7. **Decimal (Base 10)**: 0-9. **Hex (Base 16)**: 0-9 and A-F.
**Debugging**: Quickly translate error codes or memory addresses. **Web Design**: Convert RGB values (0-255) to Hex codes (#FF...) for CSS. **Networking**: Understand IP subnet masks in binary.
**Student Assignments**: Checking answers for Digital Logic homework. **Embedded Systems**: Configuring registers that require Hex input.
BigInt support for handling large numbers beyond standard integer limits.
Hex values are often prefixed with '0x' in code.
Each Hex digit represents exactly 4 bits (nibble) of Binary.
Use this to understand permissions in Linux (e.g. chmod 777 is Octal).