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Type or paste text and get its UTF-8 bytes as 8-bit groups — and flip the direction to translate binary back into text on the same page. An accent or an emoji is more than one byte, so the bytes shown here are the real ones, not an ASCII-only approximation.
Type or paste text to see its UTF-8 bytes as 8-bit groups.
Bytes are UTF-8, the encoding the web actually uses — an accent or emoji becomes its real multi-byte sequence, not a question mark. Other encodings (UTF-16, Latin-1) aren’t guessed at: when pasted bytes aren’t UTF-8, the error names the byte offset instead of showing mojibake.
Paste into the editor or open a file — everything you add stays in this tab, and you see exactly what the tool will work on before anything runs.
Your browser does all the work locally. Nothing is uploaded — what you paste never leaves this tab, so there’s nothing for anyone to store, scan, or leak.
Take the result to your clipboard, or save it as a file. Close the tab and nothing of what you pasted remains.