Binary Translator
Translate text to binary, hex or decimal bytes and back again. UTF-8 based, so it handles any language — with instant validation and copy.
About the Binary Translator
This binary translator converts text into the 0s and 1s computers actually store, and back again. Choose a direction — text to binary, binary to text, or the same pairs for hexadecimal and decimal — and the result appears as you type. Text is encoded as UTF-8 bytes shown as space-separated 8-bit groups, the standard representation used across the web.
Because the encoding is UTF-8, everything works: English, Urdu, Hindi, Arabic, Chinese, emoji. ASCII characters occupy one byte ("A" is 01000001), while characters beyond ASCII use two to four bytes each. When decoding, the tool checks your input carefully — stray characters, bit groups that aren't a multiple of 8, or byte values over 255 produce a clear, friendly error instead of garbage.
It's a favorite for computer-science homework, understanding character encodings, crafting geocache and CTF puzzles, and those "write your name in binary" moments. The hex and decimal modes show the exact same bytes in the two other notations programmers use daily, and every result has a one-click copy button.
How to Use the Binary Translator
- 1Pick a conversion direction, e.g. Text → Binary or Binary → Text.
- 2Type or paste your input — the result updates instantly.
- 3For decoding, separate bytes with spaces (optional for binary and hex).
- 4Click Copy to grab the result.
Frequently Asked Questions
How do you write "hello" in binary?
"hello" in UTF-8 binary is 01101000 01100101 01101100 01101100 01101111 — one 8-bit byte per letter, since these are plain ASCII characters. Each byte is the character's code number in base 2: h is 104, e is 101, l is 108 and o is 111. Capital letters differ by one bit; "H" is 01001000.
How does binary to text conversion work?
The translator strips spaces, checks that only 0s and 1s remain and that the length is a multiple of 8, then splits the stream into 8-bit bytes and decodes them as UTF-8. So 01001000 01101001 becomes "Hi". If your groups aren't full bytes or contain other characters, you get a clear error explaining what to fix.
Why does one emoji become four bytes of binary?
UTF-8 is a variable-length encoding: ASCII fits in one byte, most European and Middle Eastern scripts take two, Chinese and Japanese usually three, and emoji beyond U+FFFF need four. A single emoji therefore shows up as four 8-bit groups (32 bits). This is normal and exactly how the character travels over the internet.
What's the difference between binary, hex and decimal modes?
They're three notations for the same underlying bytes. The letter "A" is 01000001 in binary, 41 in hexadecimal and 65 in decimal. Hex is the compact form programmers prefer (two digits per byte), decimal matches ASCII tables, and binary shows the raw bits. Convert the same text in each mode to see all three views.
Is this the same as ASCII code?
For English letters, digits and common punctuation — yes, UTF-8 is byte-for-byte identical to ASCII, so the classic ASCII chart applies. UTF-8's advantage is that it keeps going where ASCII stops at 127, encoding every Unicode character. That's why this translator handles accented letters, non-Latin scripts and emoji that a pure ASCII tool would reject.