Free online binary code translator
Translate text into binary code or decode binary back into readable text in an instant. This binary translator is fully UTF-8 safe, so plain letters, accented characters, non-Latin scripts, and even emoji convert without corruption. It is perfect for computer-science homework, exploring how computers store characters, sending playful hidden messages, or debugging low-level data. Everything runs live in your browser as you type.
How to use the binary translator
- Pick Text to Binary to encode, or Binary to Text to decode.
- Type or paste your content into the input box on the left.
- Read the converted result in the output box — it updates automatically.
- In text mode, choose whether bytes are separated by a Space or None.
- Use Swap for a quick round trip, Copy result to grab the output, or Clear to reset.
How text becomes binary
Each character is first encoded as one or more UTF-8 bytes, and every byte is
written as an 8-bit binary number from 00000000 to
11111111. A capital A is 01000001,
which is decimal 65. Multi-byte characters like emoji simply produce several
8-bit groups in a row. Decoding reverses the process: the digits are split
into 8-bit bytes and turned back into text.
Related conversion tools
Binary is just base-2. To see the same value in octal, decimal, or hexadecimal, try the number base converter. If you need to move binary data through text-only channels instead, the Base64 encoder / decoder is a more compact, transport-friendly option. All of these tools run entirely client-side, so your data never leaves your device.