Binary Translator
Translate text to binary and binary code back to readable text using UTF-8 bytes. Convert both directions, choose byte separators, and copy the result without sending data to a server.
How Binary Works
Binary is a base-2 number system: instead of ten digits it uses only two, 0 and 1. Each digit is a bit, and every step to the left doubles the place value (1, 2, 4, 8, 16, 32, 64, 128), exactly the way decimal places multiply by ten.
Bits, bytes, and place values
- 8 bits make one byte, which can hold 256 values (0 to 255).
- The byte 01000001 is 64 + 1 = 65, because the lit-up bits sit in the 64 and 1 columns.
- Hexadecimal groups the same bits into fours, so every byte is exactly two hex digits (01000001 = 41).
From text to binary
Computers store text as bytes using the UTF-8 encoding. Each character maps to one or more bytes (basic ASCII letters use one byte each), and every byte is written as an 8-bit binary group:
- A → code point 65 → 01000001
- Hi → bytes 72 and 105 → 01001000 01101001
From binary back to text
Reading binary code is the same process in reverse: split the string into 8-bit bytes, turn each byte into a number, and decode the byte sequence as UTF-8. That is exactly what the translator above does — instantly, and entirely in your browser.
Code Examples
const bytes = new TextEncoder().encode("Hi");
const binary = [...bytes]
.map((byte) => byte.toString(2).padStart(8, "0"))
.join(" "); // "01001000 01101001"Frequently Asked Questions
What does a binary translator do?
A binary translator converts text into 8-bit binary bytes and converts binary byte groups back into readable text. This page uses UTF-8, so it works for standard ASCII plus many non-English characters.
How do I translate binary code to English?
Paste the 1s and 0s into the binary field and the English text appears immediately. The translator splits the input into 8-bit bytes, reads each byte as a character code, and decodes the sequence as UTF-8. For example 01001000 01100101 01101100 01101100 01101111 is Hello.
How do I write my name in binary?
Type it into the text field. Each letter is converted to its character code and written as an 8-bit byte, so Ann becomes 01000001 01101110 01101110. Capital and lowercase letters have different codes, which is why the first byte differs from the other two.
Why are binary groups 8 bits long?
Text is commonly stored as bytes, and one byte is 8 bits. For ASCII characters, each character maps to one byte. UTF-8 can use more than one byte for characters outside the basic ASCII range.
Can I paste binary without spaces?
Yes. If the input is one long binary string with a length divisible by 8, the translator chunks it into bytes automatically.
Why does my binary fail to translate?
The two usual causes are a bit count that is not a multiple of 8, and a stray character that is not a 0 or 1. Both mean the input cannot be split into whole bytes. Check the total length first - a 7-bit or 9-bit group is the most common mistake.
Popular phrases in binary
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The Alphabet in Binary
Reference table of every letter A-Z and a-z (plus digits 0-9) in 8-bit binary, with decimal and hex codes.
ASCII Table
Complete ASCII table with decimal, hexadecimal, octal, binary, and HTML entity values.
This tool runs entirely in your browser - nothing you enter is uploaded or stored.