Hex Encoder/Decoder
Convert text to hexadecimal and hex to text with this free online tool. Perfect for programming, debugging, and data encoding tasks.
Input Text or Hex Code
Converted Text
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What is Hexadecimal?
Hexadecimal (hex) is a base-16 number system that uses 16 symbols: 0-9 and A-F (where A=10, B=11, C=12, D=13, E=14, F=15). Each hex digit represents 4 bits, making it a compact way to represent binary data. In programming and debugging, hex is widely used for memory addresses, color codes, and data encoding.
Hexadecimal encoding is essential for:
- Programming & Debugging – Representing memory addresses, binary data, and byte values
- Web Development – Color codes in CSS (#FF0000 for red) and character encoding
- Data Analysis – Examining raw data, file headers, and binary protocols
- Cryptography – Representing hash values, keys, and encrypted data
Hexadecimal Conversion Examples
Features
Bidirectional Conversion
Convert text to hex and hex back to text with perfect accuracy and reliability.
Real-time Statistics
Get instant character count, word count, line count, and hex pair count.
Undo Function
Easily restore your original text with the built-in undo functionality.
Easy Copy
Copy converted hex code or text to clipboard with one click.
Smart Formatting
Automatically handles various hex formats and provides clean, readable output.
Privacy First
All text processing happens in your browser. Your data is never sent to our servers.
Common Use Cases
Programming & Development
Debug memory issues, analyze binary data, work with byte arrays, and understand low-level data representation.
Web Development
Work with color codes, URL encoding, character sets, and debug web application data encoding issues.
Data Analysis & Forensics
Examine file headers, analyze network packets, investigate data corruption, and reverse engineer file formats.
Cryptography & Security
Work with hash values, encrypted data, digital signatures, and security tokens in hexadecimal format.
Frequently Asked Questions
How does hexadecimal encoding work?
Each character is converted to its ASCII/Unicode value, then that decimal value is converted to hexadecimal (base-16). For example, ‘A’ has ASCII value 65, which is 41 in hex.
What hex formats does the tool support?
The tool supports plain hex (48656C6C6F), spaced hex (48 65 6C 6C 6F), and can handle both uppercase and lowercase hex digits. It automatically detects and processes the format.
Why use hexadecimal instead of binary or decimal?
Hex is more compact than binary (1 hex digit = 4 binary digits) and more readable than long decimal numbers. It’s the standard for representing memory addresses, color codes, and binary data.
Can this tool handle Unicode characters?
Yes! The tool supports all Unicode characters including emojis, international scripts, and symbols. Each character is properly encoded to its hex representation.
What’s the difference between hex and Base64?
Hex uses 16 symbols (0-9, A-F) and represents data as-is, while Base64 uses 64 symbols and adds padding. Hex is more direct for viewing raw bytes, Base64 is better for text transmission.
Is my data secure when using this tool?
Absolutely! All hex encoding and decoding happens directly in your browser. Your text and data are never uploaded to our servers, ensuring complete privacy and security.