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ASCII ↔ Hex Converter

Convert between ASCII text and hexadecimal representation — essential for decoding payment log fields

🔤 Conversion

Enter ASCII text to convert to hexadecimal.

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📖 About This Tool

What is the ASCII ↔ Hex Converter?

The ASCII to Hex Converter translates between ASCII text and its hexadecimal representation. This is essential for debugging ISO 8583 messages where fields like Merchant Name (Field 43) are stored as ASCII characters in hex streams.

🛠️ How to Use
  1. Select the conversion direction: ASCII to Hex or Hex to ASCII.
  2. Enter your data.
  3. The conversion happens automatically.
❓ FAQ

Why convert between ASCII and hex?

ISO 8583 messages encode text fields (merchant name, terminal ID, etc.) as ASCII characters within hexadecimal byte streams. Converting between formats is essential for debugging payment messages.