Skip to main content
ToolsHub

Binary Code Translator

Translate plain text into 8-bit binary and decode binary back into readable text. Handles spaces and full Unicode via UTF-8 — all client-side.

Updated

Files never leave your browser

Translated output will appear here

Enter text on the left to convert it to binary.

How to use Binary Code Translator

Convert plain text to binary code and decode binary back to readable text, entirely in your browser — no data is uploaded to any server. Each character is encoded as an 8-bit binary number following the ASCII and UTF-8 standards, so the letter A becomes 01000001 and a space becomes 00100000. The tool handles the full Unicode character set via UTF-8 multi-byte sequences for characters beyond standard ASCII.

  1. Select direction: "Text to Binary" or "Binary to Text".
  2. Paste or type your input into the text area.
  3. Click "Convert" — results appear instantly.
  4. Optionally choose the output delimiter (space, newline, or none) to control how binary groups are separated.
  5. Copy the output or download it as a .txt file.

Your data never leaves your device — 100% private processing.

How ASCII binary encoding works

Every character has a numeric code point defined by the ASCII standard. The binary translator converts that code point to an 8-bit (one byte) binary representation. The capital letter A has decimal code point 65, which in 8-bit binary is 01000001. Lowercase letters differ from their uppercase counterparts by exactly one bit — bit 5 (value 32) — so lowercase a is 01100001 (97). Binary groups are typically separated by spaces when displayed to make each byte visually distinct and easy to verify.

ASCII binary encoding examples
CharacterDecimalBinary (8-bit)
A6501000001
B6601000010
a9701100001
z12201111010
04800110000
Space3200100000
!3300100001

UTF-8 encoding for non-ASCII characters

Standard ASCII covers 128 code points (7-bit). For characters outside this range — such as accented letters, Chinese characters, or emoji — UTF-8 uses variable-length multi-byte sequences of 2, 3, or 4 bytes. The euro sign € is U+20AC, which UTF-8 encodes as three bytes: 11100010 10000010 10101100. The leading bits of each byte indicate whether it is a single-byte character, the start of a multi-byte sequence, or a continuation byte. When decoding binary input, the tool detects these patterns automatically and reconstructs the original Unicode character.

Worked examples

Text to binary

Inputs: 'A'

Result: 01000001

Binary to text

Inputs: 01000001 01000010

Result: AB

Space character

Inputs: ' ' (a single space)

Result: 00100000

Glossary

ASCII
American Standard Code for Information Interchange — a 7-bit character encoding standard defining 128 characters including English letters, digits, and control codes.
UTF-8
A variable-width Unicode encoding that uses 1–4 bytes per character and is fully backward-compatible with ASCII for the first 128 code points.
Byte
A unit of digital information consisting of 8 bits, capable of representing 256 distinct values (0–255).
Code point
A numeric value assigned to a character in a character encoding standard — for example, decimal 65 is assigned to the capital letter A in ASCII.
Bit
The smallest unit of binary data, representing either 0 or 1. Eight bits form one byte.

Related reading

Free · No spam

Get weekly tool tips & updates

New tools, power-user tips, and productivity hacks — delivered free every Friday.

No spam, ever. Unsubscribe with one click.

Related Text Tools

Unicode Escape / Unescape

Escape text to Unicode sequences (\uXXXX, HTML &#x; entities, CSS \HH) or unescape them back to readable characters. Free, instant, in your browser.

Morse Code Translator

Translate text to Morse code and Morse code to text instantly. Supports letters, numbers, and punctuation. Free online Morse code translator.

Base64 Encoder & Decoder

Encode text or files to Base64, or decode Base64 strings back to text in seconds. Free, private, and fully in-browser now.

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal instantly. Essential tool for programmers and developers.

Invisible Character Remover

Remove invisible and zero-width Unicode characters from text. Strips zero-width spaces, BOM and bidi controls and normalizes odd spaces — cleaned in your browser.

Word Counter

Count words, characters, sentences, and paragraphs, and estimate reading time. Free, instant, and private — ideal for essays, articles, and posts.

Explore all Text Tools.