Text to Binary Converter

Each character is first encoded to its UTF-8 byte value, and each byte is written as an 8-digit binary number. The bytes are joined with a single space by default, so the output stays easy to read and to split apart again.

A byte holds values from 0 to 255, which always fit in eight binary digits. Padding shorter values with leading zeros keeps every byte the same width, which is what lets the decoder chop the stream back into bytes unambiguously.

ASCII covers basic English with one byte per character for codes 0 to 127. UTF-8 extends that to every language and emoji, using one byte for ASCII characters and two to four bytes for the rest. This tool uses UTF-8, which is fully backward compatible with ASCII.

Switch to Binary to Text mode and paste your binary. The tool splits the input on any run of whitespace, reads each group as one 8-bit byte, and decodes the bytes as UTF-8 to reconstruct the original text.

Every whitespace-separated group must be exactly eight characters of 0s and 1s, and the resulting bytes must form valid UTF-8. Anything else, such as a 7-digit group or a stray letter, shows an 'Invalid binary' message instead of output.

Yes. Characters outside basic ASCII take more than one byte in UTF-8, so they produce several 8-bit groups. They round-trip exactly, meaning encoding then decoding returns the original character.

In the web tool the bytes are joined with a single space. The underlying API accepts a custom separator when encoding, and decoding accepts groups split by any whitespace, including newlines and tabs.

No. Encoding and decoding both run entirely in your browser using the built-in text encoder, so nothing you type is ever sent to a server.