What number bases are supported?

The tool supports binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).

Does it validate my input?

Yes. The tool validates your input against the selected base. For example, binary only accepts 0 and 1, octal accepts 0-7, and so on.

The tool works with JavaScript's BigInt for large numbers, so you can convert numbers larger than what standard integers support.

Yes. The tool is completely free to use and runs entirely in your browser.

Enter a number and select its base to see conversions to binary, octal, decimal, and hex.

Number

Input Base

Step 1

Enter a number in the input field.

Step 2

Select the base of your input number (binary, octal, decimal, or hex).

Step 3

View real-time conversions to all four bases.

Step 4

Click on any result card to copy the value.

Real-time conversion as you type.

Supports binary, octal, decimal, and hexadecimal.

Input validation against the selected base.

Click any result to copy it to clipboard.

No data sent to any server — completely private.

: The tool supports binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16).
: Yes. The tool validates your input against the selected base. For example, binary only accepts 0 and 1, octal accepts 0-7, and so on.
: The tool works with JavaScript's BigInt for large numbers, so you can convert numbers larger than what standard integers support.
: Yes. The tool is completely free to use and runs entirely in your browser.