Free Tool
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal in real-time.
Binary (Base 2)
11111111
Octal (Base 8)
377
Decimal (Base 10)
255
Hexadecimal (Base 16)
FF
About the Number Base Converter
The Number Base Converter is a free online tool that lets you convert between binary, octal, decimal, and hexadecimal. It runs entirely in your browser with no sign-up required, so you get instant results while your data stays on your device. It is built for developers, designers, and anyone who needs a fast, reliable number base converter without installing software.
How to use the Number Base Converter
- 1Open the Number Base Converter and enter or paste your input.
- 2Adjust the available options to match what you need.
- 3View the result instantly as you work.
- 4Copy or download the output to use in your project.
Frequently asked questions
Is the Number Base Converter free to use?
Yes. The Number Base Converter is completely free with no account, sign-up, or installation required.
Is my data private when I use the Number Base Converter?
This tool runs entirely in your browser. Your data is never uploaded to a server, which makes it safe to use with sensitive input.
Do I need to install anything?
No. The Number Base Converter works in any modern web browser on desktop or mobile, with nothing to download.
Can I use the Number Base Converter on mobile?
Yes. The tool is responsive and works on phones, tablets, and desktops.
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