Binary & Number Tools
Binary and number conversion tools: text/binary/hex/octal/decimal/ASCII converters and Roman numeral conversion.
Text to Binary
Turn any text into binary code — each character becomes its 8-bit byte.
Binary to Text
Decode binary code back into readable text — paste 1s and 0s, get words.
Decimal to Binary
Convert decimal numbers to binary — any size, with exact BigInt math.
Binary to Decimal
Convert binary numbers to decimal — instant, exact, any length.
HEX to Binary
Convert hexadecimal to binary — every hex digit expands to exactly 4 bits.
Binary to HEX
Convert binary to hexadecimal — compact hex from long bit strings.
Decimal to HEX
Convert decimal numbers to hexadecimal — 255 becomes FF, instantly.
HEX to Decimal
Convert hexadecimal to decimal — FF becomes 255, exactly and instantly.
Octal to Binary
Convert octal to binary — each octal digit expands to exactly 3 bits.
Binary to Octal
Convert binary to octal — bits collapse into base-8 digits, 3 at a time.
Octal to Decimal
Convert octal to decimal — base-8 values into everyday numbers.
Decimal to Octal
Convert decimal numbers to octal — base 10 into base 8, any size.
HEX to Octal
Convert hexadecimal to octal — base 16 to base 8 through clean binary.
Octal to HEX
Convert octal to hexadecimal — chmod-style values into byte notation.
Text to HEX
Convert text to hexadecimal — every character becomes its hex byte code.
HEX to Text
Decode hexadecimal back into text — hex byte codes become characters.
Text to ASCII
Convert text to ASCII codes — every character becomes its decimal number.
ASCII to Text
Decode ASCII codes back into text — decimal numbers become characters.
ASCII to Binary
Convert ASCII codes to binary — decimal character codes as 8-bit bytes.
Binary to ASCII
Convert binary bytes to ASCII codes — bit patterns become decimal numbers.
Text to Decimal
Convert text to decimal character codes — Unicode values for every character.
Decimal to Text
Decode decimal character codes into text — code points become characters.
Text to Octal
Convert text to octal character codes — every character in base 8.
Octal to Text
Decode octal character codes into text — base-8 escapes become characters.
Number to Roman Numerals
Convert numbers to Roman numerals — 2026 becomes MMXXVI, instantly.
Roman Numerals to Number
Decode Roman numerals to ordinary numbers — MCMXCIV becomes 1994.