How to use this converter
Convert whole numbers between common programming bases using integer-safe BigInt math.
How the conversion works
- Parses the input in the selected base.
- Converts the value as an integer.
- Displays binary, octal, decimal, and hexadecimal output.
Example
Enter decimal 255 to see binary 11111111 and hexadecimal FF.
Using the converted output
Use the output as a practical starting point, then review it before using it in an important workflow.
Assumptions and limitations
- This tool is for whole integers, not floating-point numbers.
- Very large integers are handled without JavaScript floating-point precision loss.
Frequently asked questions
Does this require an account?
No. The core tool works without creating a Tool2Do account.
Is my input included in share links or analytics?
No. Tool2Do share actions use the tool page URL and safe metadata, not private values or uploaded files.