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ASCII to Text Converter – Decode ASCII Codes Instantly
Convert ASCII codes to readable text and text to ASCII values in decimal, binary, or hexadecimal format — processed locally in your browser.
ASCII Converter
| Dec | Hex | Char | Description |
|---|---|---|---|
| 32 | 20 | (space) | Space |
| 33 | 21 | ! | Exclamation mark |
| 65 | 41 | A | Capital letter A |
| 97 | 61 | a | Lowercase letter a |
| Dec | Hex | Char | Description |
|---|---|---|---|
| Control Characters (0-31) | |||
| 0 | 00 | NUL | Null character |
| 9 | 09 | TAB | Horizontal tab |
| 10 | 0A | LF | Line feed (new line) |
| 13 | 0D | CR | Carriage return |
| Printable Characters (32-126) | |||
| 32 | 20 | (space) | Space |
| 33-47 | 21-2F | ! " # $ % & ' ( ) * + , - . / | Punctuation and symbols |
| 48-57 | 30-39 | 0-9 | Digits |
| 65-90 | 41-5A | A-Z | Uppercase letters |
| 97-122 | 61-7A | a-z | Lowercase letters |
| 127 | 7F | DEL | Delete (control) |
Standard ASCII includes 128 codes: control characters (0-31), printable characters (32-126), and DEL (127). Values 128-255 are not part of standard ASCII and are not decoded here; control characters will not display as visible glyphs in the output.
How ASCII Encoding Works
Understanding the standard that powers text representation in computers.
What is ASCII?
ASCII (American Standard Code for Information Interchange) assigns a unique number from 0 to 127 to each character. The letter A is 65, a is 97, and space is 32.
Decimal format
Base-10 numbers. The word "Hi" becomes 72 105 in decimal ASCII.
Binary format
Base-2 representation using 0s and 1s. The letter A (65) becomes 01000001 in 8-bit binary.
Hexadecimal format
Base-16 using digits 0-9 and letters A-F. The letter A (65) becomes 41 in hex. Commonly used in programming.
Standard range
Standard ASCII covers 0-127: control characters (0-31), printable characters (32-126), and DEL (127). Values 128-255 are not part of standard ASCII and are not supported here.
Conversion process
ASCII to text: each number becomes its character. Text to ASCII: each character becomes its number in the chosen format.
Quick examples — pick the tab and format, then Convert
| Direction (tab) | Format (dropdown) | You enter | You get |
|---|---|---|---|
| ASCII → Text | Decimal | 72 101 108 108 111 |
Hello |
| ASCII → Text | Binary | 01001000 01101001 |
Hi |
| ASCII → Text | Hexadecimal | 48 65 6C 6C 6F |
Hello |
| Text → ASCII | Decimal | Hello |
72 101 108 108 111 |
| Text → ASCII | Binary | Hi |
01001000 01101001 |
| Text → ASCII | Hexadecimal | Hello |
48 65 6C 6C 6F |
Each row shows exactly which tab and which format dropdown to select before clicking Convert. Values are separated by spaces in both directions.
Common uses
Where ASCII conversion matters in practice.
| Use case | Typical format | Why it matters |
|---|---|---|
| Programming & debugging | Hexadecimal | Inspect character codes in strings, logs, and protocol data |
| Data analysis | Decimal | Process legacy system exports and character-level data |
| Cybersecurity | Binary or Hex | Inspect encoded strings and character-level data during security analysis |
| Education | Decimal | Learn character encoding fundamentals and binary systems |
What this tool does — and does not
Transparent capabilities so you know exactly what to expect.
This tool does
- Convert ASCII codes to text and text to ASCII codes
- Support decimal, binary, and hexadecimal formats
- Handle the full standard ASCII range (0-127)
- Process conversions entirely in your browser
- Copy results to clipboard or download as .txt files
- Provide an expandable ASCII table reference
This tool does not
- Support values 128-255 or Unicode characters
- Handle accented characters, emojis, or non-Latin scripts
- Check grammar or spelling — use the Grammar Checker
- Convert between other encodings (UTF-8, ISO-8859-1)
- Store your data on any server
Troubleshooting
Common issues and how to fix them.
"Invalid value" error
Each value must match the selected format exactly — decimal: digits 0-9 only; binary: 0 and 1 only; hex: 0-9 and A-F only — and fall within 0-127. Tokens like 65abc or 65.9 are rejected. Separate values with spaces.
Output is blank
The input field is empty or contains only whitespace. Enter valid ASCII codes or text, then click Convert.
Accented characters not working
Characters like é, ñ, or ü belong to legacy encodings or Unicode, not standard ASCII. Values 128-255 are not part of standard ASCII, so this tool does not decode them; it supports only 0-127.
Control characters show as blank
ASCII 0-31 are non-printable control characters (NUL, LF, CR, etc.). They won't display as visible text but are still valid ASCII.
FAQ
Answers to common questions about ASCII conversion.
What is ASCII and how does it work?
ASCII (American Standard Code for Information Interchange) is a character encoding standard that represents text using numbers from 0 to 127. Each character — letters, digits, punctuation, and control characters — is assigned a unique number. For example, the letter A is ASCII code 65, B is 66, and the space character is 32.
How do I convert ASCII to text?
To convert ASCII to text, paste your ASCII codes (separated by spaces) into the input box, select the format (Decimal, Binary, or Hex), and click Convert. The tool instantly translates each ASCII number into its corresponding character and displays the readable text output.
How do I convert text to ASCII?
To convert text to ASCII, click the Text to ASCII tab, type or paste your text into the input field, choose your preferred output format (Decimal, Binary, or Hex), and click Convert. Each character in your text is translated to its corresponding ASCII numeric value.
What is the difference between decimal, binary, and hexadecimal ASCII?
All three formats represent the same ASCII values in different number bases. Decimal uses base 10 (e.g., 65 for A), binary uses base 2 (e.g., 01000001 for A), and hexadecimal uses base 16 (e.g., 41 for A). Developers typically use hex in programming contexts.
Does the tool support extended ASCII characters (128-255)?
No. This converter supports only standard ASCII (0-127). Values 128-255 are not part of standard ASCII; different legacy encodings may use those values for accented letters and other symbols, so this tool does not decode them. For Unicode or extended character sets, use a specialized Unicode converter.
Is this tool free to use?
Yes. The ASCII to Text Converter is completely free with no subscriptions, sign-ups, or usage limits. All functionality is available to everyone.
Is my text data safe when using this tool?
Yes. All ASCII conversions run entirely in your browser. Your input text and ASCII codes are never sent to or stored on our servers.
Can I use this tool on mobile devices?
Yes. The ASCII to Text Converter is fully responsive and works on smartphones, tablets, and desktops without any app installation.
What are common uses of ASCII conversion?
ASCII conversion is commonly used in programming, debugging encoded data, understanding character encoding, cryptography basics, and processing data in legacy systems that use ASCII-based text formats.
Can I download the converted output?
Yes. After conversion you can copy the result to your clipboard or download it as a .txt file using the Download button.