Free Text to Binary Converter — Text ↔ Binary Both Ways Online
Convert text to binary and binary back to text — both directions, fully UTF-8 aware so emoji and non-Latin scripts encode correctly. Clean 8-bit byte groups, optional spacing, instant conversion, all in your browser.
Text ↔ Binary Converter
Turn text into binary or decode binary back to text — UTF-8 aware, 8-bit groups, both directions, instantly.
100% Free Forever
No Sign-up
No Credit Card
Private — files never leave your browser
Unlimited Use
1 Enter text or binary
UTF-8 aware — emoji, accents and non-Latin scripts encode as their real byte sequences.
2 Direction & format
Output format
Uncheck for one continuous bit string.
Spaces in text
Uncheck to skip spaces when encoding.
3 Convert & copy
Converting…
💻 Result
Type above and hit Convert — each character becomes its UTF-8 bytes in 8-bit groups.
How it works
Encoding converts your text to its UTF-8 byte sequence first (that’s why emoji like 😀 become four byte groups), then writes each byte as an 8-bit group of 0s and 1s. Decoding reverses it: the bit string is split into bytes and read back as UTF-8, with validation that catches stray characters or lengths that aren’t multiples of 8.
Everyday uses
- Computer science homework: check your hand-converted binary against the real UTF-8 bytes.
- Fun messages: send binary-encoded notes friends have to decode.
- Debugging data: see exactly which bytes a string contains when encodings misbehave.
- Learning encoding: type an emoji and watch it expand into four byte groups — UTF-8 made visible.
- Puzzles and CTFs: decode binary challenges in either direction instantly.
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