Text to Hex Converter
Convert plain text strings into hexadecimal codes. Perfect for developers working with raw buffers and encodings.
Plain Text Input
Formatting Options
Hexadecimal Output
What is hexadecimal and how is it used in computing?
While binary code uses base-2 (representing numbers with 0s and 1s), humans find reading long strings of bits extremely tiresome. The hexadecimal system solves this by using base-16. Since a standard decimal system only has numbers 0-9, hex uses the letters A-F to represent decimal values 10-15.
Hexadecimal is incredibly efficient because exactly one byte of digital data (8 bits, e.g., 11111111) can be represented by exactly two hex digits (e.g., FF). This matches the binary structure perfectly, making it the standard layout for inspecting memory contents, representing color codes in CSS, writing assembly programs, and formatting network packages.
Understanding the formatting options
Our converter is designed with professional developer workflows in mind:
- Capitalization (Uppercase/Lowercase): Hex outputs are case-insensitive, but styling guides vary. HTML/CSS developers often prefer lowercase hex, while lower-level network logs might output uppercase.
- The 0x prefix: In C, C++, Java, and JavaScript, hexadecimal numbers are prefix-coded with
0xto distinguish them from normal base-10 integers. - Space separators: Adding spaces helps make long blocks readable, while removing them is useful if you are pasting values into hex editors.