Hex Encoder/Decoder

Convert text to hexadecimal and back. Supports ASCII and UTF-8 encoding.

Input: 0 chars | 0 bytes
Output: 0 hex digits | 0 bytes

Key Features

⚡ Fast Processing

All operations run locally in your browser for instant results.

🔒 Privacy Protected

Your data never leaves your browser. No server storage.

How to Use Hex Encoder/Decoder

1

Paste Your Input

Enter or paste your text or hex data into the input area.

2

Choose an Action

Select "Encode" or "Decode" as needed.

3

Get Result

View the result in the output area and copy or download as needed.

Frequently Asked Questions

Basics

What is hexadecimal encoding?

Hexadecimal encoding is the process of converting each character into its corresponding two-digit hexadecimal number. For example, the letter A has an ASCII code of 65, which corresponds to hexadecimal 41. This encoding method makes it easy for both humans and machines to read binary data, and is commonly used in debugging, network protocol analysis, and low-level programming.

Why use hexadecimal encoding?

Main use cases include: viewing raw binary content of files (hex dump), debugging network packets, analyzing encryption or hash values, handling non-text formats (such as binary representations of images and audio), and transmitting binary data in environments that only support text transmission.

Features

What format is the hex output?

This tool outputs continuous uppercase hexadecimal strings by default, for example "48656C6C6F" corresponds to the text "Hello". It also supports space-separated format (48 65 6C 6C 6F) and 0x prefix format (0x48 0x65 0x6C 0x6C 0x6F), which can be switched through the panel above.

Encoding Comparison

View Character Mapping (First 10 characters)

Shows how each character is converted to hexadecimal. Enter text above and click Encode to see the mapping.

Common ASCII Reference Table

View Common Character Mappings

Quick reference for commonly used ASCII characters and their hexadecimal values.