Base Converter
Decimal (DEC)
Base 10Binary (BIN)
Base 20b
Octal (OCT)
Base 80
Hexadecimal (HEX)
Base 160x
Base32 (B32)
Base 32About Base Converter
Our free online Base Converter helps you convert numbers between different numeral systems instantly. Whether you're working with binary for low-level programming, hexadecimal for web colors, or octal for Unix permissions, this tool handles all base conversions accurately.
Key Features
Multiple Bases
Convert between binary (2), octal (8), decimal (10), hex (16), and base32.
Real-time Conversion
All fields update automatically as you type in any input.
Bidirectional
Enter a value in any base and see it converted to all others.
100% Client-side
All conversions happen in your browser - your data stays private.
Copy Support
One-click copy for any converted value.
Error Validation
Invalid characters are detected and highlighted immediately.
How to Use
- 1Enter a number in any of the input fields (binary, octal, decimal, hex, or base32).
- 2All other fields automatically update with the converted values.
- 3Click the copy icon next to any field to copy that value.
- 4Use 'Clear All' to reset all fields.
Pro Tips
- 💡Binary uses only 0 and 1 - perfect for understanding computer logic.
- 💡Hexadecimal (0-9, A-F) is commonly used for colors (#FF0000) and memory addresses.
- 💡Octal (0-7) is used in Unix file permissions (chmod 755).
- 💡Base32 uses 0-9 and A-V, often used in encoding schemes.