Number Base Converter
Convert integers between binary, decimal, hexadecimal and any base from 2 to 36 without floating-point rounding.
Hover over or focus a field for help. Press Escape to close.
How it works
Paste your content or load the example. Choose the available options, run the tool, then copy or download the result.
A practical example
Numbers · Source base 10
255
Result
FF
Frequently asked questions
Is my input sent to a server?
No. Your content is processed in this browser. It is never sent to the server or saved.
What should I know about Number Base Converter?
Enter an integer without prefixes or separators. Negative values are supported; fractions are not. Maximum 10,000 input digits.