HEX Format Guide

About HEX Format

HEX (hexadecimal) is a base-16 number system that uses digits 0-9 and letters A-F to represent binary data in a compact, human-readable form. Each byte of data is represented as exactly two hexadecimal characters, making it a predictable and widely-used encoding for data inspection, debugging, and low-level programming tasks.

Hexadecimal encoding is fundamental to computing and appears in many contexts: CSS color codes (#FF5733), MAC addresses (00:1A:2B:3C:4D:5E), cryptographic hashes (SHA-256, MD5), memory addresses, Unicode code points (U+0041), and hex dump utilities. While not a file format per se, hex-encoded text files are commonly used for data transfer, debugging output, and encoding binary content as plain ASCII text.

Available Conversions

HEX Format Features

• Base-16 Encoding: Uses digits 0-9 and letters A-F to represent each nibble (4 bits)
• Byte Representation: Each byte is exactly 2 hex characters (00-FF)
• Color Codes: #RRGGBB format for web colors (e.g., #FF5733)
• Memory Addresses: 0x prefix notation (e.g., 0x7FFF)
• Hex Dumps: Side-by-side hex and ASCII display of binary files
• Cryptographic Hashes: SHA-256, MD5, SHA-1 output in hex
• Universal: Supported by all programming languages and platforms

Common Uses

• Web Development: CSS color values, HTML entities, URL encoding
• Debugging: Memory dumps, binary file inspection, data analysis
• Cryptography: Hash values, encryption keys, digital signatures
• Networking: MAC addresses, IPv6 addresses, packet analysis
• Programming: Binary literals, character codes, bitwise operations
• Data Transfer: Encoding binary data for text-based protocols
• Forensics: File signatures (magic bytes), disk analysis, malware inspection