Binary Converter
Convert binary numbers and text with our free binary converter and binary converter online tool. Easily convert binary to decimal, decimal to binary, binary to text, and text to binary. Our binary number converter and binary calculator make number-system conversions quick and simple. You can also use the tool as a binary translator, binary code translator, and binary to ASCII converter for programming, computer science, and educational purposes. Wondering how do I convert binary to decimal, how do I convert decimal to binary, or how do I convert binary to text? Enter your value and get an instant conversion.
How to use the Binary Converter
- Choose a conversion.
- Enter your text or number and copy the result.
Binary Converter features and limits
- Text uses UTF-8, so accents, symbols and emoji work
- Handles very large whole numbers exactly (up to 5,000 digits)
- Limitation: whole numbers only, with no fractions.
How the Binary Converter works
Text is turned into UTF-8 bytes and each byte is written as eight binary digits. Numbers are converted exactly with BigInt arithmetic, so large values do not lose precision.
Privacy and browser processing
Your input is processed locally in this page and is not uploaded or stored by Best Web Tools. Your hosting provider may still keep ordinary server logs for page requests.
Frequently asked questions
Why does one character sometimes give more than 8 bits?
Letters outside basic English, such as é or emoji, take two to four UTF-8 bytes, and each byte is shown as its own 8-bit group.
Related tools
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Why use the Binary Converter?
Binary is how computers store everything, and seeing it helps when learning how data is represented, debugging bit flags or checking a network value. Remember that binary text is only an encoding, not a form of encryption.