Text to Binary Converter

Convert text to binary and binary back to text.

Runs entirely in your browser. Nothing you enter is sent to the server.

Text to Binary

Type or paste text. Each UTF-8 byte becomes 8 bits.

Binary to Text

Paste bytes separated by spaces, or one unbroken run of bits in groups of 8.

How text becomes binary

Computers store text as numbers. This tool uses UTF-8, the encoding used by almost every website and modern system: each character becomes one to four bytes, and each byte is written as 8 binary digits (bits). The letter A is byte 65, which is 01000001 in binary. Bytes are separated by spaces to make them easy to read.

English letters, digits and common punctuation use a single byte, the same values as ASCII. Accented letters, other scripts and emoji use more: é is 11000011 10101001.

Converting binary back to text

Paste bytes separated by spaces or line breaks; leading zeros can be left off, so 1000001 also reads as A. You can also paste one long run of bits with no spaces, as long as its length is a multiple of 8. If the bytes don't form valid UTF-8 text, you'll see a warning and the bad bytes are shown as �.

String Tools

Password Tools

Number Tools

Security Tools