Why is each character sometimes more than 8 bits?

Characters outside basic ASCII, such as accents and emoji, use several UTF-8 bytes, so they become multiple 8-bit groups.

How should I format binary for decoding?

Separate each 8-bit byte with a space, or paste one long run of 0s and 1s in multiples of eight. Other characters are ignored.

No. Conversion happens entirely in your browser, so your text never leaves your device.

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Convert text to 8-bit binary and decode binary back to text, both directions.

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Encoding uses 8-bit binary of the UTF-8 bytes. When decoding, separate bytes with spaces or paste one continuous stream of 0s and 1s.

This converter turns text into binary and binary back into text, so you can see how characters are stored as bits.

Encoding produces the 8-bit binary of each UTF-8 byte, correctly handling accented letters and emoji, not just plain ASCII.

Decoding accepts binary separated by spaces or as one continuous stream and rebuilds the original text.

Text to binary

Input: Hi

Output: 01001000 01101001

Each character becomes its 8-bit binary code.

Why is each character sometimes more than 8 bits?: Characters outside basic ASCII, such as accents and emoji, use several UTF-8 bytes, so they become multiple 8-bit groups.
How should I format binary for decoding?: Separate each 8-bit byte with a space, or paste one long run of 0s and 1s in multiples of eight. Other characters are ignored.
Is my text uploaded anywhere?: No. Conversion happens entirely in your browser, so your text never leaves your device.

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