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Base Converter

Convert numbers between binary, octal, decimal, hexadecimal, and base36

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Free Online Base Converter - Binary, Octal, Decimal, Hex & Base36

Convert numbers between binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), and base36 instantly. Free online base converter with real-time conversion for developers and students.

Professional Number System Converter Tool

Our base converter is perfect for programmers, computer science students, and anyone working with different number systems. Convert between binary, octal, decimal, hexadecimal, and base36 with a single click.

Real-Time Multi-Base Number Conversion

See instant conversions to all supported bases simultaneously. No need to convert one at a time - enter your number once and get results in binary, octal, decimal, hex, and base36 formats immediately.

Secure Browser-Based Base Conversion

All conversions happen locally in your browser, ensuring your data remains private and secure. No internet connection required after initial load, perfect for offline use. Supports large numbers with accurate conversion.

Key Features

  • Convert between 5 different number systems
  • Real-time conversion to all bases simultaneously
  • Support for binary, octal, decimal, hexadecimal, and base36
  • One-click copy to clipboard for each result
  • Input validation for each base system
  • 100% client-side processing for privacy
  • No signup or registration required
  • Works offline after initial load
  • Clean and intuitive interface
  • Perfect for developers and students

Frequently Asked Questions

Is this base converter free?

Yes, completely free with no limitations, ads, or signup requirements. Convert as many numbers as you need.

What bases are supported?

We support binary (base 2), octal (base 8), decimal (base 10), hexadecimal (base 16), and base36 conversions.

Does it work offline?

Yes, once loaded, all conversions happen in your browser without requiring an internet connection.

How accurate are the conversions?

Our converter uses JavaScript's built-in parseInt and toString functions for maximum accuracy and supports large numbers within JavaScript's number range.

What is base36?

Base36 uses digits 0-9 and letters A-Z (36 total characters). It's often used for compact representation of numbers, like in URL shorteners.

Can I convert negative numbers?

Currently, the converter supports positive integers only. For negative numbers, convert the absolute value and add the minus sign manually.