Text ↔ Binary Converter

Convert text to UTF-8 binary or hex, and restore it back to the original text

도구를 불러오는 중…

🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.

Convert text into binary or hexadecimal based on its UTF-8 bytes, and turn those values back into the original text. It handles every Unicode character—including Korean and emoji—accurately.

How to use

  1. Choose the Text → Code or Code → Text tab.
  2. Enter the text, or the binary/hex value, you want to convert.
  3. Pick the format (binary or hex) and the separator.
  4. Copy the result.

FAQ

Why is one character several bytes?
UTF-8 uses 1–4 bytes per character. Latin letters take 1 byte, Korean characters usually 3, and emoji 4, so they appear as multiple 8-bit groups.
Will it decode without separators?
Binary is grouped into 8 digits and hex into 2 digits automatically for decoding. If the digit count doesn't line up, it shows a guidance message.
Is decoding always accurate?
Valid UTF-8 decodes exactly, but invalid byte combinations may show as the replacement character (�), so treat the result as a reference.

← Back to all tools

가격 보기카톡 무료 상담