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Number Base Converter & Bitwise Calculator

100% Client-Side Private — Zero Server Uploads

Convert between Binary (Base 2), Octal (Base 8), Decimal (Base 10), Hexadecimal (Base 16), and ASCII text. Perform bitwise AND, OR, XOR, NOT operations. 100% Client-Side BigInt.

Input Base:
Decimal (Base 10)
255
Hexadecimal (Base 16)
FF
Binary (Base 2 - 8 bits)
11111111
Octal (Base 8)
377

Bitwise Operations Calculator

Result:Decimal: 8 | Binary: 1000

How do I use Number Base Converter & Bitwise Calculator?

1

Select your input number base (Binary, Octal, Decimal, Hexadecimal, ASCII).

2

Type or paste value into the input box.

3

View synchronized conversions across all base formats.

4

Use the Bitwise Calculator to compute AND, OR, XOR, NOT operations.

What features does Number Base Converter & Bitwise Calculator offer?

BigInt arbitrary-precision number base conversions

Binary, Octal, Decimal, Hexadecimal & ASCII Text bidirectional mapping

Bitwise operations calculator (AND, OR, XOR, NOT, Bit Shift)

Frequently Asked Questions about Number Base Converter & Bitwise Calculator

Can I convert large numbers without precision loss?

Yes! The tool uses native JavaScript BigInt arithmetic, allowing arbitrarily large numbers.