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Hex Encoder/Decoder

Encode UTF-8 text to hexadecimal or decode hex back to text. Handy for hash bytes, protocol fields, and embedded dev.

Privacy: processed locally, never uploaded.

↓ Paste in the input area below to see results instantly

Convert text to hex and back using UTF-8—handy for binary debugging.

Input

Output

48656c6c6f

Notes

Note

Decoding ignores whitespace; length must be even. Processed locally.

Encode UTF-8 text to hexadecimal or decode hex back to text. Handy for hash bytes, protocol fields, and embedded dev.

Quick start

  1. Pick mode

    Encode or decode.

  2. Enter input

    Text or hex string.

  3. Copy result

    Output updates live.

Decoding notes

Hex length must be even; spaces are ignored.

Features and use cases

Encode text or bytes to hex and decode back, with spacing and case options for logs and protocol fields.

Use when inspecting HMAC inputs, comparing hash preimages, or debugging encoding mismatches.

Typical Workflow

When debugging network protocols, developers often convert raw packets to hexadecimal for analysis. For example, capturing a TCP packet containing 'Hello' yields '48656C6C6F' in this tool. Conversely, pasting this Hex value restores the original text.

In embedded systems, device logs often output in Hex format. For sensor data like 0x41 0x42, decoding reveals 'AB'. Note that non-ASCII characters (e.g., Chinese) encode to multi-byte sequences — '测' becomes E6B58B.

Examples

Hello

Input

Hello

Output

48656c6c6f

FAQ

0x prefix?

Stripped when decoding.

Uploaded?

No.

How does Hex differ from Base64 encoding?

Hex represents each byte as 0-9/A-F (e.g., 'A'=41), doubling size. Base64 uses 64 characters with ~33% size increase, better for binary transfers. Hex is more human-readable for debugging.