Online Text Binary Converter
Convert text to binary and back with UTF-8/ASCII and custom separators. 100% private, all processing in your browser
Two-Way Convert
Text to binary and binary to text
Privacy First
Your data never leaves your device
Flexible Separators
Space, comma, dash, none, newline
UTF-8 & ASCII
Switch between encodings freely
Frequently Asked Questions
How does text-to-binary conversion work?
Each character is encoded into bytes using the selected encoding (UTF-8 or ASCII), and every byte is rendered as an 8-digit binary string, separated by your chosen separator.
Will my data be uploaded to a server?
No. All conversion is done locally in your browser. Your text and binary never leave your device, fully protecting your privacy.
What is the difference between UTF-8 and ASCII?
ASCII maps 128 characters to single bytes; UTF-8 is a variable-width encoding that covers all Unicode characters, so multilingual text and emoji require multiple bytes per character.
What are byte separators for?
Separators make long binary strings readable. Choose space (most common), comma, dash, newline, or none for a continuous stream of bits.
Is this tool free to use?
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.
What happens with invalid binary input?
When decoding, if the input contains digits other than 0 and 1, or the bit count is not a multiple of 8, an error message explains the problem so you can correct it.
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