Basecountac

Type a number in binary, octal, decimal, or hexadecimal and see it in all four bases at once. Results update as you type and are grouped for easy reading - binary and hex in fours, decimal with thousands separators. There's no size limit: very large values are handled exactly, with no overflow or rounding. Negative numbers and the common 0b, 0o and 0x prefixes are accepted, and an invalid digit (like a 2 in binary) is pointed out clearly. Switch the input base and your current number converts over automatically. WHAT'S INSIDE - Binary, octal, decimal and hexadecimal side by side - Exact results for numbers of any size - Readable digit grouping - Accepts negative numbers and 0b / 0o / 0x prefixes - One-tap copy of any result - Shows how many bits a number needs - A clean, distraction-free interface with no ads and no clutter WHO IT'S FOR Programming and computer science students, developers, and electronics hobbyists.