Data Encoding
Convert between different number systems and encodings
Binary Converter
Convert between binary, decimal, hexadecimal, and octal
Base64 Converter
Encode and decode Base64 data
ASCII/Unicode Converter
Convert between text and ASCII/Unicode values
ASCII Table
Complete ASCII character reference table
Unicode Table
Browse and search the complete Unicode character set
Understanding Number Systems
Number systems are fundamental to computing and programming. Our number systems tools allow you to convert between different numerical representations that are commonly used in programming and computer science.
Binary (Base-2)
The fundamental language of computers, using only 0s and 1s to represent data. Binary is used at the hardware level for all computing operations and is essential for low-level programming.
Decimal (Base-10)
Our standard counting system using digits 0-9. While computers work in binary, humans typically think in decimal, making conversion between these systems a common programming task.
Hexadecimal (Base-16)
Uses 16 digits (0-9 and A-F) and is commonly used to represent memory addresses, color values, and to make binary more readable for humans. Each hex digit represents 4 binary digits.
Base64 Encoding
An encoding scheme that represents binary data in ASCII string format, commonly used for transmitting data over text-based protocols like email and HTTP.
Common Applications
Memory Addressing
Hexadecimal is commonly used to represent memory addresses in debugging and low-level programming.
Web Development
Hexadecimal for color codes (e.g., #FF5733) and Base64 for embedding images and fonts in CSS and HTML.
Data Transmission
Base64 encoding for sending binary data over text-based protocols and APIs.
Character Encoding
ASCII and Unicode conversions for working with text in different languages and special characters.