Conversion input
Turn text into ASCII codes
This tool uses standard 7-bit ASCII values from 0 through 127. Your input stays in this browser.
Free developer tool
Free ASCII Converter
An ASCII converter changes text into standard numeric character codes or turns those codes back into text. Convert instantly among decimal, hexadecimal, and 8-bit binary without uploading your input.
Runs locallyNo signupASCII 0-127 validationCopy and export
Live result
ASCII codes
14 characters converted
Character inspection
Compare every value across decimal, hexadecimal, and 8-bit binary.
| Character | Decimal | Hex | Binary |
|---|---|---|---|
| H | 72 | 0x48 | 01001000 |
| e | 101 | 0x65 | 01100101 |
| l | 108 | 0x6C | 01101100 |
| l | 108 | 0x6C | 01101100 |
| o | 111 | 0x6F | 01101111 |
| , | 44 | 0x2C | 00101100 |
| SPACE | 32 | 0x20 | 00100000 |
| T | 84 | 0x54 | 01010100 |
| o | 111 | 0x6F | 01101111 |
| r | 114 | 0x72 | 01110010 |
| n | 110 | 0x6E | 01101110 |
| i | 105 | 0x69 | 01101001 |
| c | 99 | 0x63 | 01100011 |
| ! | 33 | 0x21 | 00100001 |
How to use the ASCII converter
- 1Choose a directionSelect Text to ASCII to encode characters, or ASCII to Text to decode numeric values.
- 2Select a number formatChoose decimal, hexadecimal, or 8-bit binary for both the input and result.
- 3Enter text or codesType ASCII text, or paste numeric values separated by spaces, commas, semicolons, or new lines.
- 4Inspect and exportCompare each character in all three representations, then copy the result or download a text report.
One value, three representations
The capital letter A is decimal 65, hexadecimal 0x41, and binary 01000001. Each form represents the same ASCII code.
ASCII is not Unicode
ASCII covers 128 characters. Modern text uses Unicode and encodings such as UTF-8 to represent additional languages, symbols, and emoji.
ASCII converter FAQ
What is an ASCII converter?
An ASCII converter changes text into the numeric codes assigned by the 7-bit ASCII standard, or decodes those values back into text. Common representations are decimal, hexadecimal, and binary.
What ASCII values are valid?
Standard ASCII uses values from 0 through 127. Values 0-31 and 127 are control codes, while 32-126 cover spaces, punctuation, digits, and English letters.
Why does binary ASCII use eight bits here?
ASCII needs only seven bits, but bytes are commonly displayed with eight positions. The leading bit is zero, so capital A is shown as 01000001.
Can ASCII represent emoji or accented letters?
No. Emoji and most accented letters require Unicode encodings such as UTF-8. This converter reports those characters instead of silently changing them.
Does Tornic upload my text?
No. Encoding, decoding, copying, and export all run locally in your browser, so the text is not sent to Tornic.
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