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DataToolings

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal

Quick Reference

Binary (2):
0-1
Octal (8):
0-7
Decimal (10):
0-9
Hex (16):
0-9, A-F
Base32:
A-Z, 2-7
Base64:
A-Z, a-z, 0-9, +, /

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What is Number Base Converter?

Number Base Converter is a free online tool that converts numbers between different bases (radix). It supports binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), base32, and base64. Uses BigInt for large number support. Perfect for programmers, students, and anyone working with different number systems.

How to Use Number Base Converter

  1. Enter a number in any of the input fields (binary, octal, decimal, or hex)
  2. The tool automatically converts to all other bases in real-time
  3. Copy any converted value to clipboard with one click
  4. Use the sample button to see an example conversion

Features

  • Convert between 6 number bases: binary, octal, decimal, hex, base32, base64
  • Real-time conversion as you type
  • BigInt support for very large numbers
  • Input validation for each base
  • One-click copy to clipboard
  • Quick reference guide for each base
  • Sample data for quick testing

Frequently Asked Questions

What number bases are supported?

The tool supports binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), base32, and base64. You can enter a number in any of these bases and see the conversion to all others.

Can it handle large numbers?

Yes! The converter uses JavaScript's BigInt for large number support, so you can convert very large numbers without losing precision.

Why are base32 and base64 read-only?

Base32 and base64 are encoding schemes typically used for text/binary data, not pure numbers. The tool shows these encodings as output only for reference, but you can input numbers in binary, octal, decimal, or hexadecimal.

Is my data stored anywhere?

No, all conversions happen in your browser. Your numbers are never sent to any server and are not stored anywhere. Everything stays private on your device.