Free online binary converter tool. Convert text to 8-bit binary representation (ASCII/UTF-8) and decode binary back to readable text instantly. Supports auto-detection of input format, spaced and continuous binary, and hexadecimal output. Perfect for learning binary encoding and debugging protocols. 100% browser-based.
100% browser-based — your data never leaves your device
Convert text to binary representation and binary back to text.
Paste text to convert to binary, or paste binary (space-separated 0s and 1s) to decode to text.
The tool auto-detects the input format, or you can manually switch between Text to Binary and Binary to Text modes.
Click Copy to grab the converted output for use in your application.
Ctrl+Enter to convert
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This tool translates between ordinary text and its 8-bit binary representation, working in both directions so you never have to hand-compute a single byte.
The output keeps spaces between each 8-bit byte so it stays readable, and conversion happens locally in your browser.
If you have ever stared at a packet capture or a protocol log and wondered what a stream of 0s and 1s actually says, this tool gives you the answer in one step. Decoding binary from network debugging is a recurring need, and flipping a captured byte sequence back into readable text makes those sessions dramatically faster. On the teaching side, converting words like Hello into their binary bytes and back makes character encoding concrete for students in a way that reading a textbook never does.
The auto-detect feature removes a whole class of mistakes: paste either kind of input and the tool picks the direction. The byte information panel is useful for confirming how many bytes your data actually occupies, and knowing that each ASCII character takes exactly eight bits helps you estimate binary lengths before you encode anything.
Text you convert to binary is often the payload of a real communication, such as credentials, messages, or configuration data being inspected for a protocol issue. Uploading that content to a conversion service duplicates sensitive material onto someone else's infrastructure.
Local conversion keeps every byte on your device. The text, the binary output, and the byte statistics never leave the browser.
Paste text to convert to binary, or paste binary (space-separated 0s and 1s) to decode to text.
The tool auto-detects the input format, or you can manually switch between Text to Binary and Binary to Text modes.
Click Copy to grab the converted output for use in your application.
Practical examples to help you get the most out of Binary Converter:
Input: 'Hello' Output: 01001000 01100101 01101100 01101100 01101111
Input: '01000001 01000010 01000011' Output: 'ABC'
Binary input must have spaces between each 8-bit byte. '010000010100001001000011' is treated as one large number, not three separate bytes. Use '01000001 01000010 01000011' instead.
Binary uses only 0 and 1 (base-2), while hex uses 0-9 and A-F (base-16). 'A' in binary is '01000001', in hex it's '41'. Use the ASCII Converter tool for hex values.
Binary representation converts each character to its 8-bit binary equivalent. For example, 'A' becomes '01000001'.
No. All conversion happens locally in your browser. Your data never leaves your computer.
Convert text to 8-bit binary and decode binary back to text with a single tool.
Automatically detects whether input is text or binary and switches the conversion direction accordingly.
See byte count, character count, and binary length information for your data.
All conversion happens locally in your browser. Your data never leaves your device.
Binary Converter is useful in a variety of scenarios across different workflows:
Understanding how text is represented at the binary level
Converting binary data for debugging network protocols
Teaching and learning about character encoding and binary representation
Standard ASCII/Unicode characters use 8 bits (1 byte) each. The 'A' character is represented as '01000001' in binary. Non-ASCII characters use multi-byte sequences.
Binary output is formatted with spaces between each 8-bit byte. This makes it easier to read and count bytes compared to a continuous string of 0s and 1s.
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