Text Input
Binary (8-bit, UTF-8)
Hexadecimal
Decimal
How Text Becomes Binary
Computers store text as numbers. Every character you type is mapped to one or more bytes using an encoding — the modern standard is UTF-8. Each byte is 8 bits (binary digits), so the letter A (code 65 in ASCII/UTF-8) is stored as 01000001. This tool uses the browser's built-in TextEncoder, so it handles everything from plain English to emoji and non-Latin scripts correctly.
Binary, Hex and Decimal Are the Same Bytes
Binary, hexadecimal and decimal are just three ways of writing the same byte values. The byte for A is 01000001 in binary, 41 in hex and 65 in decimal. Hex is popular with programmers because one byte is always exactly two hex digits, while binary shows you the raw bits the machine actually works with.
Private and Instant
Conversion happens live as you type, entirely in your browser — no data is uploaded to any server. Use the Binary → Text tab to reverse the process: paste binary, hex or decimal bytes (spaces and newlines are fine) and get the original text back via TextDecoder.