Hexadecimal converter
Translate hex values into decimal and turn text into its hex byte representation.
Everything runs in your browser. Nothing you type or paste is sent to a server.
How to use the hexadecimal converter
- 1
Type a hexadecimal number (with or without 0x).
- 2
Read its value in decimal, binary and octal.
- 3
Use “Text ⇄ hexadecimal” to convert words.
About this tool
Hexadecimal uses 16 symbols (0–9 and A–F) and is common in colors, memory addresses and data dumps.
Text conversion uses UTF-8, the same standard as the web.
Frequently asked questions
What is FF in decimal?
255. It's the maximum value of a byte.
Is it case sensitive?
No: “ff” and “FF” are the same number.