Hex to Text
Converter
Convert text to hexadecimal and hexadecimal to text instantly with flexible formatting options. Perfect for programming, debugging, and understanding hexadecimal encoding with secure client-side processing.
Operation Mode
Text to Hex
Convert text to hexadecimal
Hex to Text
Convert hexadecimal to text
Hexadecimal Format & Options
Hex Case Format
Delimiter
Prefix Style
Enter text to convert (supports ASCII & Unicode):
Hexadecimal Text
Conversion
From programming and debugging to data encoding, our Hexadecimal Text Converter handles every conversion need with precision. Convert between text and hexadecimal formats instantly with flexible formatting options.
Whether you're working with color codes, memory addresses, or encoding data, convert with confidence using our comprehensive hex toolkit with real-time processing, multiple format support, and customizable delimiters and prefixes.
How Hexadecimal Conversion Works
Simple Steps:
- 1Choose between text-to-hex or hex-to-text conversion mode
- 2Select your preferred hex format (uppercase/lowercase), delimiter, and prefix style
- 3Input your text or hexadecimal code to convert instantly
- 4Copy results or export as files for further use
Pro Tips:
- Uppercase format (A-F) is standard for documentation and displays
- Lowercase format (a-f) is common in programming languages like Python
- Use 0x prefix for C-style code, \x prefix for Python/escape sequences
- Space delimiter makes hex more readable for manual inspection
- Colon delimiter follows MAC address and IPv6 conventions
- No delimiter creates compact output for storage or transmission
- The tool automatically handles UTF-8 encoding for Unicode characters
- Import files to convert large text documents to hexadecimal format
Common Use Cases
Web Development & Design
Work with CSS color codes, URL encoding, and inspect Base64 data for web applications
Example:
Convert color names to hex codes: "red" β #FF0000 β 46 46 30 30 30 30
Programming & Debugging
Debug character encoding issues, inspect memory dumps, and analyze binary data in development
Example:
Analyze network packets, file signatures, and protocol data
Data Encoding & Protocols
Encode data for transmission, create escape sequences, and work with low-level protocols
Example:
Convert text to \x escape sequences for Python/shell scripts
File Analysis & Forensics
Identify file types by magic numbers, analyze file headers, and inspect corrupted data
Example:
Check PNG header: 89 50 4E 47 (magic number identification)
Network & Hardware
Work with MAC addresses, IPv6 notation, and hardware identifiers in colon-separated format
Example:
MAC address: 00:1A:2B:3C:4D:5E format conversion
Learning & Education
Understand hexadecimal number system, byte representation, and character encoding fundamentals
Example:
Learn how text is stored: "A" = 0x41 = 65 decimal = 01000001 binary
Frequently Asked Questions
π» Technical Details & Hexadecimal Specifications
1 Hexadecimal Number System & Format Options
π’ Hexadecimal Basics
Base-16 Number System
Hexadecimal uses 16 symbols: 0-9 for values 0-9, and A-F (or a-f) for values 10-15. Each hex digit represents 4 bits (a nibble), making it perfect for representing bytes (2 hex digits = 8 bits = 1 byte).
Digits: 0 1 2 3 4 5 6 7 8 9 A B C D E F
Values: 0-15 in decimal
Example: 'A' (char 65) = 41 in hex = 0x41 (C-style)
Byte: 00-FF (0-255 decimal)
Case Formats
Hexadecimal digits A-F can be uppercase or lowercase
Uppercase (A-F): Standard for documentation, displays, color codes
Lowercase (a-f): Common in programming languages (Python, JavaScript, CSS)
Example: 48656C6C6F = 48656c6c6f = "Hello"
Functionally: Identical values, different presentation
π Prefix & Delimiter Styles
Prefix Options
Prefixes indicate hexadecimal notation in code and documentation
No Prefix: 48 65 6C 6C 6F (clean, readable)
0x Prefix: 0x48 0x65 0x6C 0x6C 0x6F (C/C++/Java style)
\x Prefix: \x48\x65\x6C\x6C\x6F (Python/escape sequence)
Usage: Matches programming language conventions
Delimiter Options
Delimiters separate hex byte pairs for readability
Space: 48 65 6C 6C 6F (most readable)
Comma: 48,65,6C,6C,6F (CSV format)
Colon: 48:65:6C:6C:6F (MAC/IPv6 style)
None: 48656C6C6F (compact storage)
2 UTF-8 Encoding & Unicode Character Support
π€ UTF-8 Multi-Byte Encoding
- 1 Byte (ASCII): 0x00-0x7F (standard ASCII characters)
- 2 Bytes: 0xC0-0xDF + continuation byte (Latin extended, Greek, Cyrillic)
- 3 Bytes: 0xE0-0xEF + 2 continuation bytes (most Unicode, including CJK)
- 4 Bytes: 0xF0-0xF7 + 3 continuation bytes (emoji, rare scripts)
- Example: 'A' = 41, 'Γ©' = C3 A9, 'δΈ' = E4 B8 AD, 'π' = F0 9F 98 80
- Automatic: Tool handles variable-length encoding transparently
π Unicode Character Categories
- ASCII (1 byte): English letters, digits, basic punctuation
- Latin Extended (2 bytes): Accented characters (Γ©, Γ±, ΓΆ, ΓΌ)
- International (2-3 bytes): Greek (Ξ±, Ξ²), Cyrillic (Π°, Π±), Arabic, Hebrew
- CJK (3 bytes): Chinese, Japanese, Korean characters
- Emoji (4 bytes): Emoticons, symbols, flags
- Support: Full Unicode range (U+0000 to U+10FFFF)
3 Conversion Algorithms & Processing
β‘οΈ Text to Hexadecimal
Step 1: UTF-8 Encoding
Convert text to UTF-8 byte array using TextEncoder API
'Hello π' β [72, 101, 108, 108, 111, 32, 240, 159, 145, 139]
Step 2: Byte to Hex
Convert each byte to 2-digit hexadecimal string
72 β toString(16) β "48" (padded to 2 digits)
Step 3: Format & Prefix
Apply case format (uppercase/lowercase) and optional prefix
"48" β "0x48" or "\x48" or "48"
Step 4: Join with Delimiter
Combine hex values with selected delimiter
Join with space, comma, colon, or no delimiter
β¬ οΈ Hexadecimal to Text
Step 1: Clean Input
Remove all prefixes (0x, \x) and delimiters (space, comma, colon)
"0x48 0x65" β "4865"
Step 2: Validation
Verify string contains only valid hex digits (0-9, A-F, a-f)
Check even length and valid character range
Step 3: Parse to Bytes
Convert hex pairs to byte values (0-255)
parseInt("48", 16) β 72 (byte value)
Step 4: UTF-8 Decode
Decode byte array to text using TextDecoder API
Uint8Array β TextDecoder β "Hello"
4 Common Applications & Use Cases
π¨ Web Development & Design
- β’Color Codes: CSS colors in hex format (#FF5733, #RGB)
- β’URL Encoding: Convert special characters to %XX format
- β’Base64 Data: Inspect hex values in encoded data
- β’Unicode Debugging: Verify character encoding issues
π» Programming & Development
- β’Memory Dumps: Analyze binary data and memory contents
- β’Network Packets: Inspect protocol data and payloads
- β’File Signatures: Identify file types by magic numbers
- β’Escape Sequences: Create byte literals for code
5 Privacy & Performance Features
100% Client-Side Processing
All hexadecimal conversions happen entirely in your browser using native JavaScript TextEncoder/TextDecoder APIs. Your data never leaves your device, ensuring complete privacy and security of your text and hex data.
β No Data Upload: All processing happens locally in your browser
β Instant Results: Real-time conversion with no server delays
β Offline Capable: Works without internet connection once loaded
β No Tracking: We don't monitor, store, or analyze your data
6 Best Practices & Considerations
β‘ Performance Considerations
- β’File Size: Browser memory limits may affect very large files (10MB+)
- β’Mobile Devices: Performance varies on phones/tablets vs desktop
- β’Recommended: Keep files under 1-2MB for smooth performance
- β’Large Data: Consider command-line tools for production workloads
β¨ Best Practices
- β’Case Consistency: Choose uppercase or lowercase based on your use case
- β’Prefix Usage: Match programming language conventions (0x for C, \x for Python)
- β’Delimiter Choice: Space for readability, none for compact storage
- β’Unicode Support: Tool handles all UTF-8 characters including emoji
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