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Binary Translator — Free Online Tool
Computers store every letter as a number, and those numbers are held as binary digits. This binary translator shows that process live: type any text in the top box and each character is converted to its character code and written as an eight-bit group of ones and zeros, separated by spaces. The letter A becomes 01000001 and the word Hi becomes 01001000 01101001. The reverse direction works too, so paste a space-separated binary message into the lower box and the decoded text appears above. Students use it to understand ASCII for computer science classes in school or college, puzzle makers use it to hide messages, and developers use it to check how a string looks at the bit level. Standard English letters, digits and punctuation fit within eight bits. Characters outside the basic Latin set, such as Hindi letters or emoji, have larger character codes and produce longer binary groups, so decoding those correctly needs the groups to be preserved exactly. Always leave a single space between each eight-bit byte when decoding. The conversion happens in your browser, nothing is stored, and there is no limit on how much text you convert. For numeric conversions between binary, octal, decimal and hex, use the Number Base tool.
Use our Binary Translator on AllConvertor — no registration, no download, works on iPhone, Android, Windows, and Mac. All processing runs in your browser when possible for maximum privacy and speed.
How to use Binary Translator
- Type or paste text into the top box to see its binary code.
- Or paste binary bytes separated by spaces into the lower box.
- Read the converted result in the other box.
- Copy the output for your assignment, puzzle or code.
Key benefits
- ✓ 100% free — no paywall or trial limits
- ✓ No account or email required
- ✓ Mobile-friendly responsive design
- ✓ Instant results in your browser
- ✓ Secure — data stays on your device
- ✓ Trusted by thousands of users daily
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Frequently Asked Questions
How do I convert text to binary?
Type your text in the top box. Each character is turned into its character code and shown as an eight-bit binary number separated by spaces.
How do I convert binary back to text?
Paste the binary into the lower box, with a single space between each byte such as 01001000 01101001, and the decoded text appears in the top box.
What is the binary for the letter A?
Uppercase A is 01000001 in 8-bit binary (decimal 65). Lowercase a is 01100001 (decimal 97).
Why does the output look longer for some characters?
Characters outside basic English, like Hindi letters or emoji, have higher character codes that need more than eight bits.
What is the difference between this and the Number Base tool?
This tool converts text characters. The Number Base tool converts numbers between binary, octal, decimal and hexadecimal.