Free Number Base Converter
Convert between binary, decimal, hex, and octal number systems. Free, fast, and works entirely in your browser with no sign-up required.
Number Base Converter
Convert between binary, octal, decimal, hex, and 8 more number bases. Features two's complement, IEEE 754 float, bit-flip visualization, bitwise operations, text encoding, ASCII reference, and full conversion history.
Common Presets
Number Base Converter
255 (Decimal)
= 0xFF (Hexadecimal)
Decimal (base 10) -> Hexadecimal (base 16)
Decimal: 255
Favorites
1111 1111
Binary (base 2)
377
Octal (base 8)
255
Decimal (base 10)
FF
Hexadecimal (base 16)
7V
Base-32 (base 32)
Conversion Table
Binary
Octal
Decimal
Hexadecimal
Base-32
Base-36
Ternary
Quinary
Senary
Duodecimal
Vigesimal
Base-4
Frequently Asked Questions
What is the Number Base Converter?
The Number Base Converter is a free online tool that converts numbers between binary, decimal, hexadecimal, and octal number systems.
Is the Number Base Converter free?
Yes, it is completely free with no registration required. All conversions happen client-side in your browser.
What number bases are supported?
The Number Base Converter supports binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) conversions.
Is my data safe with this tool?
Absolutely. The Number Base Converter processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.
Does the Number Base Converter work on mobile devices?
Yes, the Number Base Converter is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.
Do I need to create an account to use this tool?
No account or registration is needed. Simply open the Number Base Converter in your browser and start using it immediately. There are no sign-up walls or usage restrictions.
How do I use the Number Base Converter?
Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.
Which browsers are supported?
The Number Base Converter works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.
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About Free Number Base Converter
Free Number Base Converter is a free, browser-based tool in our Converter Tools collection. Everything runs locally on your device — no uploads, no sign-up, and your data stays private.