Hex & ASCII Articles & Guides
These developer guides cover byte conversion, text encodings, binary inspection, and CSS colors. Start with hex to ASCII in code, UTF-8 decoding, or reading hex dumps. The text encoding guide explains the byte model behind them.
For base-16 fundamentals, read hexadecimal basics and the #FF5733 color breakdown. To encode text in the opposite direction, use the ASCII to hex programming guide.
Text Encoding
Decode Hex to UTF-8 Without Garbled Text
Decode hexadecimal bytes as UTF-8, diagnose invalid sequences and mojibake, and choose a deliberate error policy in Python, JavaScript, Go, or shell.
Hex Fundamentals
Hex Colors: #FF5733, RGB, HSL and Contrast
See the exact RGB, HSL, and WCAG contrast values for #FF5733, then learn six-digit, shorthand, and alpha hex color syntax.
Text and Byte Conversion
ASCII to Hex in Python, JavaScript, C and Shell
Encode ASCII or UTF-8 text as hexadecimal with Python, JavaScript, C, and shell examples, including byte length and padding checks.
Text and Byte Conversion
Hex to ASCII in Python, JavaScript, C and CLI
Implement strict hex-to-ASCII conversion in Python, JavaScript, C, and the command line, with delimiter, odd-nibble, and encoding checks.
Binary Inspection
Read Hex Dumps: xxd, hexdump and File Signatures
Read offsets, byte columns, and ASCII gutters; reverse xxd output; and check common file signatures without confusing format detection with integrity.
Text Encoding
ASCII, UTF-8 and Unicode: Encoding Guide
Compare ASCII, UTF-8, UTF-16, Unicode code points, and legacy single-byte encodings with byte-level examples and debugging checks.
Hex Fundamentals
Hexadecimal Basics: A Beginner's Guide
Learn how base 16 works, convert values between hex and binary, and recognize hexadecimal in code, colors, addresses, and file headers.
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