ASCII to Hex Converter Online

What is an ASCII to Hex Converter?

ASCII to Hex encodes each character as its byte value in hexadecimal. For example, A becomes 41, and Hello becomes 48 65 6C 6C 6F. This is useful for debugging protocols, firmware strings, and binary logs.

• Example: Hi → 48 69
• Newlines: LF (\n) → 0A, CR (\r) → 0D
• Privacy: Encoding runs locally in your browser.

How to Use

1. Type or paste ASCII text into the input box.
2. Optionally enable uppercase, byte spacing, or 0x prefixes.
3. Convert, then copy or download the hex output.