ASCII to Hex Converter

Summary

Type or paste ASCII text and instantly get the hexadecimal representation with options for spacing and case.

How it works

1. Type or paste your ASCII text into the input field.
2. Each character is converted to its ASCII code point (decimal).
3. The decimal code point is formatted as a two-digit hexadecimal value.
4. Optionally enable the space delimiter to separate each hex pair.
5. Toggle uppercase to get A–F instead of a–f in the output.
6. Use the Copy button to copy the hex result to your clipboard.

Use cases

• Encode text strings for use in low-level protocols or binary formats.
• Prepare hex payloads for network packet crafting and security testing.
• Debug and inspect character encoding in software development.
• Convert strings to hex for use in CSS content properties or SQL literals.
• Encode messages for CTF (Capture the Flag) challenges.
• Verify correct ASCII encoding of config values or tokens.

Frequently Asked Questions