Binary Translator
Type any text or paste binary code — we auto-detect which direction you want and translate.
Example:
Hi → 01001000 01101001
This translator converts between text and 8-bit binary. The tool auto-detects which direction you want: if your input is only 0s, 1s, and whitespace, it decodes to text; otherwise it encodes to binary.
Each character becomes 8 bits (one byte) using ASCII/Unicode code points. Capital A is 01000001; lowercase a is 01100001; the digit 0 is 00110000. Spaces between bytes in the output are for human readability — the tool ignores them on input.
Use cases
Computer science education
Show students how text is stored: every character is just a number, and every number is just a sequence of bits. Encoding their own name often produces an "aha" moment.
Cipher puzzles and escape rooms
Hide a message in plain sight by binary-encoding it. Solvers paste the ones-and-zeros into our tool and reveal the answer.
Geek-culture communication
T-shirts, Discord bios, and tattoos with hidden binary messages are a 50-year-old nerd tradition. Encode "hello world" before getting the ink.
Unicode debugging
Suspicious character in a database export? Decode the binary to confirm it's the byte you expect (often an unintended emoji or zero-width-space).
Coding interview practice
Implementing binary-to-text conversion is a common interview warmup. Use this tool to check your reference implementation.
Frequently asked questions
Does it handle Unicode?
Sort of — characters above code point 255 (emoji, CJK, etc.) won't fit in 8 bits and will produce inaccurate output. For full Unicode, use UTF-8 byte arrays (each Unicode character can be 1–4 bytes). For basic Latin alphabet text, this tool is exact.
Why does my binary input fail?
Make sure the bit count is a multiple of 8 and contains only 0s, 1s, and whitespace. Common mistakes: a stray period, extra newline characters, or a missing leading zero.
Can I get binary without spaces?
The tool outputs spaces between bytes for readability. To get a continuous stream, paste the output back through any "remove whitespace" tool, or use Find & Replace with space → empty.