Something wrong with this tool?

About BINARY To TEXT Converter Online

This tool decodes binary (0s and 1s) back to readable text. Paste a binary sequence — bytes separated by spaces, line breaks, or any common delimiter — and the tool restores the original characters.

Useful for reading binary-encoded messages, decoding outputs from programming exercises, working with computer-science homework problems, or unwrapping puzzles and escape-room clues.

The tool auto-detects byte width (8, 16, or 32 bits) and handles both ASCII and UTF-8 encoded binary. If the binary length isn't a multiple of 8, the tool reports an error rather than guessing how to align the bits.

How to use this tool

How to decode space-separated byte values to text

  1. Paste the byte stream

    Drop space-separated integers into the "Binary (ASCII)" field. Despite the name, the tool expects decimal byte values, not 0/1 binary digits. Example: 72 101 108 108 111.

  2. Stay within 0–255

    Each integer must be 0–255 inclusive. Any value outside that range — negative, decimal, hex, NaN — throws "Each byte must be an integer 0–255."

  3. Press Run

    Bytes are assembled into a Buffer and decoded as UTF-8. Multi-byte UTF-8 sequences work — e.g. 0xC3 0xA9 (195 169) becomes é.

  4. Use for ASCII tables and CTFs

    Useful for converting ASCII / decimal-byte dumps from CTFs, low-level debugging, and educational examples. For real binary protocols, use a hex tool — this one is decimal-only.