Hexadecimal (Hex) Encoder & Decoder Online

Convert plain text to Hex bytes and decode Hex strings to readable ASCII text instantly with custom byte delimiters, prefix formatting, and validation.

How to Use Hexadecimal (Hex) Encoder & Decoder Online

  1. Input Plaintext or Hex Bytes: Enter readable text to encode, or space-separated / continuous hex characters (e.g. "48 65 6c 6c 6f") to decode.
  2. Select Delimiter & Format: Choose formatting options including spaces, colons, 0x prefixes, or uppercase hex characters.
  3. Convert & Inspect Byte Array: Inspect hexadecimal byte values and corresponding ASCII/UTF-8 character representations.

Frequently Asked Questions

What is Hexadecimal encoding?

Hexadecimal represents binary byte values in base-16 using digits 0-9 and letters A-F, with each byte represented by two hex characters.

Why do developers use Hex encoding?

Hexadecimal provides a human-readable representation of raw computer memory, network packets, cryptographic digests, and compiled binary bytes.