Developer tool
Text ↔ Binary Converter
Convert text to 8-bit UTF-8 binary and binary bytes back to text locally in your browser.
Processed in your browser unless a tool explicitly says otherwise.
Use the toolNo account required
This tool converts text to binary using UTF-8 bytes. Each byte is displayed as 8 binary bits.
Binary values are UTF-8 bytes, not UTF-16 code units. Invalid binary groups and invalid UTF-8 are rejected without partial output.
How it works
UTF-8 bytes, shown as bits.
Convert text into 8-bit binary groups using UTF-8, or decode valid binary bytes back into text without sending anything anywhere.
Privacy note
Your input is processed locally and is never uploaded.