Hex / Decimal / ASCII Converter

Convert between Hexadecimal, Decimal, and ASCII character codes instantly

Separate multiple numbers with spaces

Supports 0x prefix, separate multiple values with spaces

Type characters directly, standard ASCII symbols only

About This Converter Tool

This free online hex, decimal, and ASCII converter lets you instantly convert between number systems and character codes. Whether you are debugging network protocols, analyzing binary data, learning computer science fundamentals, or working with low-level data formats, this tool provides fast and accurate conversions with batch support.

How to Convert Hexadecimal to Decimal

Enter hex values separated by spaces in the Hexadecimal field (e.g., "41 61 64"). Click "Hex → Decimal + ASCII" to see the decimal equivalent and the corresponding ASCII characters. The tool supports both with and without "0x" prefix — enter "0x41" or simply "41" — it will handle both formats automatically.

How to Convert Decimal to Hex

Type decimal numbers separated by spaces in the Decimal field (e.g., "65 97 100"). Click "Decimal → Hex + ASCII" to instantly see the hexadecimal representation and the ASCII characters that those numbers represent. This is particularly useful when working with ASCII tables or character encoding.

Common Use Cases

Developers use this tool for debugging network packets, reading memory dumps, and working with color codes (hex to RGB). Students learn number system conversions in computer science courses. System administrators analyze log files and binary configuration data. The batch conversion with space-separated values makes it efficient for processing multiple values at once.