Hex-Text Converter
Convert text to hexadecimal and hex to text instantly. Supports UTF-8 encoding with configurable separators and case options. Perfect for debugging, network analysis, and data encoding.
Convert text to hexadecimal and hex to text instantly. This free hex-text converter supports ASCII and UTF-8 encoding with configurable separators (space, colon, or none) and uppercase/lowercase output. Perfect for debugging, network packet analysis, and data encoding. All conversion happens entirely in your browser — your data is never sent to any server.
100% Client-Side Processing
All hex-text conversion happens directly in your browser using TextEncoder and TextDecoder APIs. Your data never leaves your device.
How to Use the Hex-Text Converter
- Select your mode: "Text to Hex" converts text characters to hexadecimal bytes, "Hex to Text" decodes hex back to text.
- Configure options: In text-to-hex mode, choose a separator (space, colon, or none) and uppercase or lowercase output.
- Enter your input: Type or paste text or hex values.
- View the result: Conversion happens instantly as you type.
- Copy or swap: Copy the result or swap input/output to reverse the conversion.
What is Hexadecimal Encoding?
Hexadecimal (base-16) uses digits 0-9 and letters A-F to represent values. Each hex digit represents 4 bits (a nibble), so two hex digits represent one byte (8 bits). This makes hex a compact and readable way to represent binary data.
Example:
Text: Hello
Hex: 48 65 6c 6c 6f
H=0x48(72) e=0x65(101) l=0x6c(108) l=0x6c(108) o=0x6f(111)
Features
UTF-8 Support
Full Unicode/UTF-8 encoding for international characters
Configurable Separator
Choose between space, colon, or no separator
Case Toggle
Switch between uppercase (FF) and lowercase (ff) hex output
Bidirectional
Convert text to hex and hex back to text
Real-Time
Instant conversion as you type
Auto-Detect Format
Hex-to-text mode accepts spaces, colons, or no separators
Related Tools
Need Base64 encoding instead? Try our Base64 Encoder/Decoder. For number base conversion, check out our Base Number Converter.
Frequently Asked Questions
What is the difference between hex and Base64?▼
Both are ways to represent binary data as text. Hex uses 16 characters (0-9, A-F) and doubles the size (1 byte = 2 hex chars). Base64 uses 64 characters and increases size by ~33%. Base64 is more space-efficient for large data, while hex is more human-readable and commonly used in debugging.
What encoding does this tool use?▼
This tool uses UTF-8 encoding, which is backward-compatible with ASCII. Standard ASCII characters (A-Z, 0-9, etc.) use 1 byte each. Extended characters like accented letters use 2 bytes, and emojis may use up to 4 bytes in UTF-8.
Which separator format should I use?▼
Space-separated (48 65 6C) is the most readable and common in debugging and hex editors. Colon-separated (48:65:6C) is used in MAC addresses and network contexts. No separator (48656C) is compact and used in programming and URLs.
Can I convert binary data (non-text) with this tool?▼
This tool is designed for text-to-hex conversion. When converting hex to text, the hex values must represent valid UTF-8 byte sequences. If the hex data represents binary data (like images or executables), the hex-to-text conversion will fail because binary data cannot be meaningfully displayed as text.
Frequently Asked Questions
❓ Is this tool free?
Yes! All our tools are completely free. No registration, no hidden charges, no ads. Just open and use.
🔒 Is my data safe?
Absolutely. All calculations happen in your browser. We don't store, send, or track any of your data. Everything is processed locally on your device.
📱 Can I use this on mobile?
Yes! All our tools are fully responsive and work perfectly on smartphones, tablets, and desktops.
🌐 Do I need internet?
No! Once the page loads, you can use the tool completely offline. All calculations happen in your browser without any server connection.