在线八进制转换工具，支持八进制（Base 8）与二进制、十进制、十六进制等进制互转，Unix权限计算必备。
Online binary converter. Convert binary (Base 2) to decimal, octal, hexadecimal and more. Perfect for programming and computer science learning.
Online decimal converter. Convert decimal (Base 10) to binary, octal, hexadecimal and more. Essential for daily calculations.
Online hexadecimal converter. Convert hexadecimal (Base 16) to binary, octal, decimal and more. Essential for color codes and memory address calculations.
Online BCD code converter. Convert between BCD (Binary-Coded Decimal) and decimal. Essential for electronic engineering and digital circuit design.
Online Gray code converter. Convert between Gray code and binary, decimal. Adjacent numbers differ by one bit. Perfect for encoders and communication systems.
Online two's complement converter. Calculate two's complement for signed integers. Essential for computer science and programming. Supports 8-bit, 16-bit, 32-bit.