Key Features
Binary, octal, decimal, hexadecimal conversion
Base32 and Base64 support
Live conversion as you type
Supports very large numbers (BigInt)
One-click copy for each base
Two complement representation for negative numbers
How to Use
1Enter your number in any base field
2View the converted values in all other bases
3Click Copy next to any base to use it
Common Use Cases
Convert hex color values to decimal RGB
Convert a binary IP address to decimal
Debug bitwise operations in your code
Encode data in base32 for URL-safe transport
Frequently Asked Questions
What is the maximum number size?
The converter uses BigInt, so it can handle arbitrarily large integers limited only by browser memory. Decimal fractions are not supported.