Text to Binary / ASCII
Convert text to binary, hexadecimal, octal or decimal bytes and back to text. Handles accents and emoji. Free and private, in your browser.
Text
Stays in your browserResult
Shortcuts: Ctrl+Enter run · Ctrl+Shift+C copy result · / search (use ⌘ on Mac)
Next steps
Done here? Use the Send to… menu on the result to carry it on to Unicode Character Inspector, Emoji & Unicode Escape or Encode / Decode.
Free Online Text to Binary / ASCII
Turn words into the numbers a computer stores, as binary, hex, octal or decimal, and turn those numbers back into text. Useful for learning, puzzles and checking what bytes a text really contains. It gives developers a quick browser-based way to solve a focused text to binary / ascii task before moving the result into a project.
How to convert text to binary
Choose Text to numbers, pick a number system and type your text. The bytes appear on the right as you type.
How to convert binary back to text
Choose Numbers to text, pick the same number system and paste the numbers, separated by spaces or commas or all together.
Common mistakes
- Pick the right number system when decoding: "48 69" is hex, while "72 105" is decimal, and both spell "Hi".
- Each group is one byte, so a number above 255 (or a binary group longer than 8 digits) is an error.