Number Base Converter
Binary, octal, decimal, hexadecimal, and custom base 2-36.
How to use
Runs entirely in your browser. Live updates or click to run. No signup, no tracking, no data sent anywhere.
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Part of 71 free tools by Auburn AI. Category: Converters
About this tool
The Number Base Converter takes any integer and converts it across the four common numeral systems: binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). It is built for developers, students, and anyone working close to hardware or low-level code who regularly needs to translate values between these representations without doing the math by hand.
How to use it
- Select the base of your input number from the dropdown or radio options.
- Type or paste your number into the input field.
- The tool instantly displays the equivalent value in all other bases.
- Click any result field to copy the converted value to your clipboard.
- Clear the input to start a new conversion at any time.
Pro tips
- For hex input, the tool accepts both uppercase A-F and lowercase a-f, so paste directly from source code without reformatting.
- Large decimal integers like memory addresses convert cleanly here; no need to break them into chunks before converting.
FAQ
Does it handle negative numbers?
The tool is designed for non-negative integers. Negative values and floating-point numbers are outside its scope.
Is there a limit on how large the number can be?
Very large integers may hit browser precision limits with standard JavaScript numbers. For most practical development work the range is more than sufficient.
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