CodeBeautifyNumber Base Converter
Convert a number between binary, octal, decimal, and hexadecimal at once, live as you type.
Binary—
Octal—
Decimal—
Hexadecimal—
Programmers switch between number bases constantly — binary and hex for bitwise flags and memory addresses, octal for legacy file permissions. This converts a value to all four at once.
Frequently asked questions
How do I convert a number between bases online?
Type the number, choose which base you typed it in, and the equivalent binary, octal, decimal, and hexadecimal values update instantly.
Can I enter negative numbers?
Yes, a leading minus sign is supported and preserved across all four bases.