Hex to UTF8 Converter

The Hex to UTF8 Converter is an online tool that converts hexadecimal (hex) strings to UTF-8 encoded text and vice versa. This tool is essential for developers working with binary data, debugging encoding issues, processing hex-encoded strings, and converting between different text representations.

What is this tool for?

Our Hex to UTF8 Converter tool is perfect for developers, system administrators, and anyone working with hexadecimal data and text encoding. Whether you're decoding hex-encoded strings, converting text to hex format, debugging encoding issues, or working with binary data, this tool simplifies the conversion process.

Common use cases include:

• Decoding hexadecimal strings to readable UTF-8 text
• Converting UTF-8 text to hexadecimal representation
• Debugging encoding and character representation issues
• Processing hex-encoded data from APIs or databases
• Converting binary data to text format
• Working with hex dumps and memory representations

How to Use the Tool

1. Select Conversion Mode: Choose between "Hex → UTF-8" (decode) or "UTF-8 → Hex" (encode) using the swap button.
2. Enter Input:
   • For Hex to UTF-8: Paste your hexadecimal string (e.g., 48656C6C6F)
   • For UTF-8 to Hex: Paste or type your text
3. Upload File (Optional): Use the file upload button to load data from a file.
4. View Output: The converted output appears automatically in the output panel.
5. Copy or Download: Use the copy button to copy the result, or download it as a file.

Understanding Hexadecimal and UTF-8

Hexadecimal (Hex): A base-16 numbering system that uses digits 0-9 and letters A-F to represent values. Each hex digit represents 4 bits, so two hex digits represent one byte (8 bits).

UTF-8: A variable-width character encoding that can represent any Unicode character. UTF-8 uses 1 to 4 bytes per character, making it efficient for ASCII characters (1 byte) while supporting all Unicode characters.

Example

Hexadecimal Input:

48656C6C6F20576F726C6421

UTF-8 Output:

Hello World!

UTF-8 Input:

Hello 🌟

Hexadecimal Output:

48 65 6C 6C 6F 20 F0 9F 8C 9F

Features

• Bidirectional Conversion: Convert hex to UTF-8 and UTF-8 to hex
• Real-time Conversion: Automatic conversion as you type or paste
• UTF-8 Support: Properly handles multi-byte UTF-8 characters including emojis and international characters
• Hex Validation: Validates hex format before conversion
• Whitespace Handling: Automatically removes spaces and "0x" prefixes from hex input
• File Upload Support: Upload files directly for conversion
• Copy & Download: Easily copy or download converted data
• Privacy-focused: All conversions happen locally in your browser

Use Cases

• Debugging: Decode hex-encoded strings to understand their content
• Data Processing: Convert between hex and text formats in data pipelines
• API Integration: Process hex-encoded responses from APIs
• Binary Data: Convert binary data representations to readable text
• Memory Analysis: Convert hex dumps to readable text
• Encoding Conversion: Convert text to hex for storage or transmission

Technical Details

• Hex Format: Accepts hex strings with or without spaces, with or without "0x" prefix
• UTF-8 Encoding: Uses JavaScript's TextEncoder/TextDecoder for proper UTF-8 handling
• Multi-byte Characters: Correctly handles UTF-8 characters that require multiple bytes (emojis, Chinese, etc.)
• Byte Alignment: Validates that hex strings have even length (each byte = 2 hex digits)
• Error Handling: Provides clear error messages for invalid input