Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly in your browser.
Runs locally — nothing is uploaded
How to use
- 1
Enter a value
Type digits valid for the source base (0–9, A–F for hex).
- 2
Select bases
Choose source and target bases: binary, octal, decimal, or hexadecimal.
- 3
Copy result
The converted value appears instantly.
Frequently Asked Questions
Binary (2), octal (8), decimal (10), and hexadecimal (16).
This tool converts non-negative integers only.
The result area shows an invalid message until every character is valid for the selected source base.
No. Base conversion runs locally in your browser.
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