Convert text to UTF-8 binary with optional 0b prefixes and space, none, or newline separators. See character, byte, and bit counts — free, private, no upload.
0 characters
100% browser-based
Runs locally in this tab
No upload required
Your files never leave this device
Nothing is stored
Close the tab and the input is gone
Instant results
No queue and no server wait
Type a word or a sentence and get the bit pattern for each UTF-8 byte. Accents and emoji encode correctly instead of as broken Latin-1. Character, byte, and bit counts sit beside the output so you can see the expansion.
Turn on 0b when you are pasting into notes or code comments that use that convention for binary literals. Leave it off for a compact stream of 0s and 1s that a worksheet, a puzzle, or another decoder will regroup by eights.
Spaces make groups readable when you are checking homework by eye. None concatenates bits for a puzzle or a spec that wants a raw stream. Newline puts each byte on its own row for slides and worksheets you will print or screenshot.
The string stays in the browser. Homework, captions, and internal labels are not sent anywhere, and you do not need an account. Close the tab and the bits disappear because the conversion never left this device.
Unicode is supported. You do not upload a file.
Space is easiest to read. None or newline match specific homework or comment styles. 0b is optional on each group.
UTF-8 means some characters use more than one byte. The stats show that expansion so a bit-length assignment stays honest.
Copy the groups into a worksheet or a note. Pair with Binary to Text to round-trip. Nothing is stored on a server.
Straight answers on privacy, limits, and how the workspace behaves.
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