ASCII Converter

Convert text to ASCII decimal, hexadecimal, or binary codes

Input Text
ASCII Codes
72 101 108 108 111 32 87 111 114 108 100

What is ASCII Conversion?

ASCII (American Standard Code for Information Interchange) is a character encoding standard that represents text in computers. Each character is assigned a unique number from 0 to 127. For example, 'A' is 65, 'a' is 97, and '0' is 48.

Converting text to ASCII codes is essential for debugging, understanding how computers store text, preparing data for embedded systems, and encoding for certain protocols.

How to Use

Step 1: Enter or paste your text in the input area.
Step 2: Select the desired output format: Decimal, Hexadecimal, or Binary.
Step 3: Optionally check “Space between codes” for readability.
Step 4: Click “Convert to ASCII”. The ASCII codes appear instantly.
Step 5: Copy the result with the “Copy Result” button.

Examples

Text: "A"
Decimal: 65 | Hex: 41 | Binary: 01000001

Text: "Hello"
Decimal: 72 101 108 108 111
Hex: 48 65 6c 6c 6f
Binary: 01001000 01100101 01101100 01101100 01101111

Who Uses ASCII Converters?

  • Programmers – debugging character encoding, working with low-level protocols.
  • Students – learning how computers represent text.
  • Embedded Engineers – preparing data for microcontrollers.
  • Security Researchers – analyzing binary data and hex dumps.

Pro Tips

  • Use decimal format for quick reference to ASCII tables.
  • Hexadecimal is common in debugging tools and network packets.
  • Binary is useful for understanding bit-level representation.
  • Spacing between codes makes long strings easier to read.

Frequently Asked Questions

What is the difference between ASCII and Unicode?
ASCII covers only English letters, digits, and basic symbols. This tool works with ASCII characters (0-127); non‑ASCII characters will output their Unicode code point (may exceed 127).
Can I convert ASCII codes back to text?
Yes, use our Hex to Text, Binary to Text, or ASCII to Text tools (see related tools).
Is my data sent to a server?
No, all conversion happens locally in your browser. Your text never leaves your device.