// FREE BROWSER TOOL · NO SIGN-UP
Binary Code Translator
Convert text to binary and binary back to text instantly. Watch every character light up as eight bits while you type.
// the short answer
What a binary code translator does
A binary code translator turns readable text into binary, the strings of 0s and 1s a computer actually stores, and turns that binary back into text. Every letter, digit, and symbol you type is first matched to a number by a character set, and that number is written out in base-2.
Computers do not store letters. They store states that are either off or on, which we write as 0 or 1. To keep text consistent across devices, ASCII assigns each character a number, and modern text uses UTF-8, which is built from the same one-byte building blocks for everyday English characters. The tool above does the lookup and the base-2 math for you, and the bit ladder shows each character one at a time so the pattern is easy to follow.
// how it works
From a letter to eight bits
Follow a single character through the conversion. The capital letter A has the ASCII value 65. Writing 65 in base-2 gives 01000001, padded to a full byte.
Why 65 becomes 01000001
Read the eight bit positions from left to right as the place values 128, 64, 32, 16, 8, 4, 2, 1. Add the place values wherever a bit is 1. For the letter A that is 64 + 1, which equals 65. Every byte works the same way.
Using the tool
- Pick a direction. Choose Text to Binary to encode, or Binary to Text to decode.
- Enter your content. Type or paste text, or paste a string of 0s and 1s. The result updates as you go.
- Read the bit ladder. Each character appears as eight cells, with the 1s lit, so you can see exactly how it was built.
- Copy or download. Save the output with one click, or use Swap to send a result back through the other direction.
Binary is not encryption. Anyone can decode it with a table or this tool, so it does not keep information secret.
// examples
Common text to binary conversions
These short phrases show how length scales in binary. Each character adds exactly one byte, which is eight bits, so a five-letter word is 40 bits long.
| Text | Decimal codes | Binary |
|---|---|---|
| Hi | 72 105 | 01001000 01101001 |
| OK | 79 75 | 01001111 01001011 |
| Code | 67 111 100 101 | 01000011 01101111 01100100 01100101 |
| Hello | 72 101 108 108 111 | 01001000 01100101 01101100 01101100 01101111 |
| Binary | 66 105 110 97 114 121 | 01000010 01101001 01101110 01100001 01110010 01111001 |
| 2025 | 50 48 50 53 | 00110010 00110000 00110010 00110101 |
| @ | 64 | 01000000 |
| Yes! | 89 101 115 33 | 01011001 01100101 01110011 00100001 |
// reference
ASCII to binary table
Look up any common character and its binary value. The table covers the printable ASCII set: digits, uppercase and lowercase letters, and common symbols, each shown in decimal, hexadecimal, and 8-bit binary.
Digits 0–9
10 charsUppercase A–Z
26 charsLowercase a–z
26 charsCommon symbols
33 chars// where it is used
Why binary matters
Binary is the layer underneath everything a computer does. Text, images, audio, and program instructions all reduce to patterns of bits before a processor can work with them.
For most people the translator is a learning aid. Students check homework on number systems, teachers use the bit ladder to show place values, and developers sanity-check how a string is encoded. It is also a small puzzle tool, since binary messages are a common way to hide a short note in plain sight.
Basic English characters look the same in ASCII and UTF-8. Accented letters and emoji use more than one byte in UTF-8, so they produce more than eight bits. This tool handles them correctly.
A space is the character with code 32, so it becomes a full byte (00100000) just like any letter.
// questions