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Binary Converter
Free binary converter: text to binary, binary to text, binary to decimal, hex and octal. Instant results, no signup, works offline in your browser.
Binary Converter puts a full number-base toolkit one click away in your toolbar โ no page to open, nothing to upload, no account.
โ Convert in any direction Text โ Binary โ Decimal โ Hexadecimal โ Octal. Pick a "From" and "To" format and it converts as you type. UTF-8 safe, so emoji and accented text survive the round trip.
โ Base converter Type a number once and see it in binary, decimal, hex, and octal at the same time. Exact for very large numbers.
โ Binary calculator Add, subtract, multiply, or divide two binary numbers. Results shown in both binary and decimal.
โ Private by design Everything runs locally in your browser. No servers, no network access, no analytics, no tracking. Your input never leaves your device โ the extension requests zero permissions.
โ Light & dark theme Matches your system, or toggle it yourself.
Built by the team behind binaryconverter.net โ the free binary translator used by students, developers, and anyone decoding a message.
