What is a Number Base Converter?
A number base converter lets you switch a value between decimal (base 10), hexadecimal (base 16), binary (base 2), and octal (base 8). It is handy when you work with low-level code, color values, network masks, or debugging binary data.
How to use this tool
- Type a value into any base field (decimal, hex, binary, or octal). Prefixes such as
0x,0b, and0oare accepted. - See instant conversions in the other bases. Copy any result with the copy button.
- Clear or reuse values at any time; quick presets like 42 or 65535 help you test quickly.
Common use cases
- Checking bit masks and flags while debugging.
- Converting color values or memory offsets.
- Teaching or learning how different bases represent the same number.
Keep this converter nearby whenever you need fast, reliable base changes without leaving your browser.