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Encoding & Number Bases

Hex Content Decoder

Decode pipe-delimited hex groups mixed with ASCII text, as used in Snort content strings. Review decimal byte values.

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Direct answer

What Hex Content Decoder does

Hex Content Decoder reads hexadecimal groups between pipe characters within ordinary ASCII text. This mixed representation appears in Snort content strings. For example, foo|3d|bar represents foo=bar. The current result displays decimal byte values.

Output

What you receive

The result is an array of decimal byte values. The example foo|3d|bar produces [102,111,111,61,98,97,114]. These bytes represent the ASCII text foo=bar.

Common questions

Answers about Hex Content Decoder

How do I decode Snort-style hexadecimal content?

Use mixed ASCII text with hexadecimal bytes between vertical bars, such as foo|3d|bar. The decoder returns the corresponding byte array. For that example, the bytes represent foo=bar, although the interface can display decimal byte values.

Why does plain hexadecimal text stay as literal characters?

This format decodes hexadecimal only inside vertical-bar groups. An input such as 48656c6c6f outside bars remains literal text bytes. Use Hex Decoder when the entire input is an ordinary hexadecimal byte string.

Does Hex Content Decoder validate a complete Snort rule?

No. It processes the content representation rather than a full rule grammar. A completed result does not certify rule syntax or matching behavior. Validate the complete rule separately in its intended ruleset and engine.

Use this tool

How to use Hex Content Decoder

  1. Paste only the content string, such as foo|3d|bar. Do not paste a complete Snort rule.
  2. Use two hexadecimal digits per byte inside each pipe-delimited group. Spaces can separate the byte pairs.
  3. Review the decimal byte array. Use Hex Decoder in the related tools for plain hexadecimal input without pipes.

Processing

Browser processing

This tool processes its input in your browser. Your files and text stay on your device.

Common uses

Where Hex Content Decoder fits

  • Inspect a small mixed ASCII and hexadecimal content example.
  • Compare literal text with its pipe-delimited byte representation.
  • Prepare a content-string fragment for review in a separate rule-writing workflow.

Limits

Check before you use the result

  • This tool handles content-string fragments. It does not parse or validate complete Snort rules.
  • Plain hex without pipe delimiters remains literal text in Hex Content Decoder. Use the separate Hex Decoder for that format.
  • The decoder uses permissive matching. Unmatched text can pass through unchanged; a completed result does not certify valid rule syntax.
  • A byte sequence does not identify its character encoding. Decimal byte output is not a Unicode code-point list.

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Encoding & Number Bases

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