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Encoding Converter
Convert text to binary and back — UTF-8 aware, with hex and decimal ASCII modes, a choice of separators, and editor-style panels.
3 chars
3 bytes · UTF-8
Computers store text as numbers. Each character is mapped to a numeric code point and then encoded into bytes. This tool uses UTF-8, the dominant encoding on the web, so plain ASCII letters take one byte while emoji and accented characters take several. Each byte is then shown in binary (base-2), hexadecimal (base-16), or decimal (base-10).
A single byte is 8 bits, which is why binary output groups into eight digits and hex into two. The letter “A”, for example, is 65 in decimal, 0x41 in hex, and 01000001 in binary. Conversion is fully reversible: paste binary, hex, or decimal back in and you get the original text.