Encode a word
Paste a small example into the tool and change one part at a time.
In decimal, Hi becomes 72 105 - the code for H then i.
Conversor ASCII
Converta texto em códigos ASCII e códigos ASCII de volta em texto.
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What is an ASCII converter?
An ASCII converter maps characters to the numeric codes computers use to store them, and back again. ASCII (American Standard Code for Information Interchange) assigns a number 0–127 to each basic English character - A is 65, a is 97, space is 32. This tool shows you those codes and decodes them, in decimal, hexadecimal, or binary.
Modern text goes beyond the original 128 ASCII characters, so this converter uses Unicode code points under the hood. That means accented letters, symbols, and emoji all get correct codes too - é is 233, and an emoji is a code point above 127. Switching the base lets you read the same code as decimal (65), hex (41), or binary (01000001).
It's handy for debugging encoding issues, working through a computer-science exercise, or decoding a string of numbers someone sent you. Everything runs locally in your browser.
What you'll learn while converting ASCII
- Every character maps to a number - its ASCII value (0–127) or, more generally, its Unicode code point.
A=65 anda=97: uppercase and lowercase letters are 32 apart.- Digits
0–9are codes 48–57, and space is 32.
How to convert text to ASCII step by step
Pick a direction
Choose Text → ASCII to get the codes, or ASCII → Text to decode a list of codes.
Choose a base
Show the codes in decimal, hexadecimal, or binary - the decoder reads whichever base you pick.
Type or paste your input
Enter text to encode, or paste codes separated by spaces or commas to decode.
Copy or swap
Copy the result with one click, or swap to reverse the conversion.
ASCII code quick reference
Common characters with their decimal, hex, and binary codes. See the full ASCII table for all 128 characters.
| Character | Decimal | Hex | Binary |
|---|---|---|---|
| (space) | 32 | 20 | 00100000 |
| 0 | 48 | 30 | 00110000 |
| 9 | 57 | 39 | 00111001 |
| A | 65 | 41 | 01000001 |
| Z | 90 | 5A | 01011010 |
| a | 97 | 61 | 01100001 |
| z | 122 | 7A | 01111010 |
| ! | 33 | 21 | 00100001 |
| @ | 64 | 40 | 01000000 |
| ~ | 126 | 7E | 01111110 |
Examples to try
Decode decimal codes
Copy the original value, run the tool, then compare the result.
Paste this in ASCII → Text mode (decimal) to get Coddy.
Common mistakes
- Decoding with the wrong base -
41isAin hex but)in decimal, so match the base to how the codes were written. - Confusing a digit character with its value - the character
5has ASCII code 53, not 5. - Assuming ASCII covers everything - characters beyond 127 (accents, emoji) are Unicode code points, not classic ASCII.
ASCII Converter FAQ
How do I convert text to ASCII?
Type your text in Text → ASCII mode. Each character is shown as its code in the base you choose - decimal, hex, or binary.
How do I convert ASCII codes to text?
Switch to ASCII → Text mode, pick the base your codes are in, and paste them separated by spaces or commas.
What's the ASCII code for A?
The capital letter
A is 65 in decimal, 41 in hexadecimal, and 01000001 in binary. Lowercase a is 97.Does it support emoji and accented characters?
Yes. It uses Unicode code points, so characters beyond the original 128 ASCII values - accents, symbols, and emoji - convert correctly.
