Text to Binary Converter

How does a computer see the word "Hello"?

Everything a computer holds, text, pictures and sound, is stored in the end as zeros and ones. This tool lets you see it for yourself: type a word and it appears in binary, or paste a string of 0s and 1s to find out what it says. It is handy in computer science lessons on encoding, and for decoding a binary message in a puzzle or a game.

How to use it

1. Choose the mode from the list.
2. Type the text or numbers into the input box.
3. Click "Start Now", then copy the result.

The six modes

• Text to binary and binary to text: each byte is written as eight digits. "Hi" becomes 01001000 01101001, and back again.
• Decimal to binary and binary to decimal: 2026 is 11111101010. The tool takes very long numbers, up to 100 decimal digits or 400 binary digits, without losing precision, so it handles values far beyond what a normal calculator shows.
• Text to HEX and HEX to text: hexadecimal notation, covered in detail on the text to HEX converter page.

Why some letters take more digits

The tool encodes text as UTF-8, the encoding used by almost the entire web. A plain English letter takes one byte, eight binary digits. An accented letter like é takes two bytes, as does an Arabic or Greek letter, and an emoji takes four. That is why some services count accented letters or emojis as more than one character when they measure a message.

What the tool accepts

• A binary string pasted without spaces is split into groups of eight automatically, as long as its length is a multiple of 8.
• If the string does not spell valid text, the tool warns you instead of printing garbled symbols.

Your input is sent to Jood's server for the conversion and is not stored.