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Hex Calculator

Encoding & Text Conversion Tools

Convert between hexadecimal and text encodings like ASCII, UTF-8, UTF-16, and EBCDIC — decode raw bytes into readable characters, or the reverse.

About Encoding & Text Conversion Tools

Every character maps to one or more bytes, and hex is the standard compact way to display those byte values. This category converts hex to and from ASCII and UTF-8 encoded text — useful for reading raw byte data as readable characters, or checking exactly what bytes a piece of text encodes to.

Frequently Asked Questions

Why does hex show up in text encoding?

Every character maps to one or more bytes, and hex is the standard compact way to display those byte values — two hex digits per byte.

What's the difference between ASCII and UTF-8 hex conversion?

ASCII covers only 128 characters in a single byte each. UTF-8 uses a variable number of bytes to represent virtually any character, so the same visible text can produce different hex output between the two.

Which converter should I use for a Python bytes.fromhex() string specifically?

Hex String to Text — it's built around that exact format (a plain run of hex digit pairs) rather than the more general Hex to Text or Hex to ASCII pages.

Do I need a different tool for encoding versus decoding text?

No — each pair here covers both directions (like ASCII to Hex and Hex to ASCII), so whichever direction you need, there's a dedicated page for it rather than one tool trying to guess.