To convert text to binary, paste your text into a translator and it returns each character as an 8-bit byte, written in 1s and 0s. To go the other way, paste binary and it rebuilds the original text. The free text to binary translator does both instantly in your browser, with nothing uploaded.
Computers store every character as a number, and every number as bits: 1s and 0s. Converting text to binary just makes that hidden layer visible, which is handy for learning how text is stored, for puzzles, and for checking a binary string you have been handed.
How characters become binary
The translation happens in two steps. First, each character is matched to a number using a character set. The modern standard is UTF-8, which gives every letter, digit, symbol and emoji a numeric code. Second, that number is written in base 2, the binary system, padded out to fill whole bytes.
A byte is eight binary digits. A plain English letter or digit fits in a single byte, so “A” becomes 01000001. Characters outside the basic set, like an accented é or an emoji, are stored across several bytes in UTF-8, so their binary runs longer than you might expect. That is normal and the decoder handles it.
How to convert text to binary
Step 1: Choose text to binary
Open the binary translator and set the direction to text to binary.
Step 2: Paste your text
Type or paste whatever you want to encode. The binary updates as you go, with a space between each byte so it stays readable.
Step 3: Copy the binary
Copy the output straight out. Each eight-digit group is one character of your original text.
How to decode binary back to text
Set the direction to binary to text and paste your binary. The safest format is space-separated bytes, like 01001000 01101001, because the spaces tell the tool where one character ends and the next begins. A single unbroken run of bits also works as long as its length is a multiple of eight.
If a group is not made only of 1s and 0s, or the bytes do not form valid text, the tool says so rather than returning gibberish. That makes it easy to spot a typo in a long binary string.
Where converting binary is useful
A few everyday reasons people reach for it:
- Learning how text is stored. Seeing “Hi” become
01001000 01101001makes the idea of bytes concrete. - Puzzles and secret messages. Binary is a classic way to hide a short message that looks like noise.
- Quick verification. Decode a binary string someone sent you to confirm it really spells what they claim.
Binary, ASCII and UTF-8
You will sometimes see this called text to ASCII binary. ASCII is the older standard that covers the basic English characters in a single byte each, and for plain text the binary looks identical. UTF-8 extends that to every language and symbol while keeping those original codes the same, so a translator built on UTF-8 handles both the simple cases and the full range of characters.
For counting characters rather than encoding them, the character counter shows totals with and without spaces.