Binary to ASCII Converter
Convert binary back to readable text (ASCII/UTF-8). Paste binary digits — with or without spaces between bytes — and each group of 8 bits is decoded to a character.
Worked example
The input 01001000 01101001 converts to Hi. Try editing the box
above to convert your own text.
ASCII / character reference table
Each character has a numeric code that can be written in decimal, binary or hexadecimal:
| Character | Decimal | Binary (8-bit) | Hex |
|---|---|---|---|
| A | 65 | 01000001 | 41 |
| a | 97 | 01100001 | 61 |
| Z | 90 | 01011010 | 5A |
| 0 | 48 | 00110000 | 30 |
| 9 | 57 | 00111001 | 39 |
| (space) | 32 | 00100000 | 20 |
| ! | 33 | 00100001 | 21 |
| ? | 63 | 00111111 | 3F |
Frequently asked questions
- How do I convert binary to ascii?
- Paste your input into the box above and the result appears instantly. For example, "01001000 01101001" becomes "Hi". Everything runs in your browser — nothing is uploaded.
- Is my text uploaded to a server?
- No. The conversion runs entirely in your browser with JavaScript, so your text never leaves your device.
- Do I need spaces between the bytes?
- No. Spaces are optional — the tool reads the bits in groups of 8 from the left. Spaces, tabs and new lines are ignored, so neatly spaced or solid binary both work.