Number Base Converter

Computer systems process all data in binary (base 2), but programmers work across multiple number bases: binary for low-level bit manipulation, octal for Unix file permissions, decimal for everyday arithmetic, and hexadecimal for memory addresses, colour codes, and byte representation. Converting between these bases by hand is possible but slow and error-prone for large numbers. This number base converter instantly converts any integer between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). A front-end developer tweaking an interface colour might encounter the hex value #3A7FD5 and need to understand each byte component — this tool breaks that down to decimal RGB values instantly. An embedded systems engineer reading a microcontroller datasheet might find a register mask listed in binary like 0b10110100 and need its hex equivalent before writing driver code. A system administrator assigning Unix file permissions uses octal notation daily — knowing that chmod 755 translates to binary 111 101 101 is exactly the kind of rapid cross-base check this converter handles in a single step. Computer science students learning about two's complement, bitwise operations, or data encoding benefit enormously from seeing the same number expressed across all four bases simultaneously. Network professionals, hardware engineers, firmware developers, and anyone working with low-level programming, memory addresses, hardware registers, or colour values will find themselves returning to this tool regularly. Even seasoned developers occasionally need a quick sanity check when working with bit flags or packed data formats. All conversion happens entirely within your browser — no data is sent to any server, so sensitive register values or proprietary addresses remain completely private. Whether you are deep in a debugging session at 2 a.m. or teaching a classroom full of students how number systems work, this converter gives you an instant, accurate answer without installing anything or leaving your workflow.