About this Tool
Number base conversion is fundamental in computer science and programming. Binary (base-2) uses only 0 and 1, representing how computers store data. Octal (base-8) uses digits 0-7 and was historically used in computing. Decimal (base-10) is our everyday number system. Hexadecimal (base-16) uses 0-9 and A-F, commonly used for memory addresses, color codes, and compact binary representation. This tool uses JavaScript's BigInt for handling extremely large numbers without precision loss.