Number Base Converter
Use this free online Number Base Converter to convert numbers between any bases from 2 to 36. It works instantly in your browser, and your data never leaves your device.
About the Number Base Converter
Convert between binary, octal, decimal, hex and any custom base up to 36 in one place, with exact results for very big numbers.
Also known as: radix converter, base conversion.
How to use the Number Base Converter
- Paste your input into the box above, upload a file, or click Sample to try an example.
- Pick any options you need. The Number Base Converter processes your input instantly as you type.
- Click Copy to copy the output or Download to save it as a file.
Features
- Free with no signup and no daily limits
- Private: runs entirely in your browser
- Works on mobile, tablet and desktop
- Upload files and download results
- Live results as you type, with clear error messages
- Clean, fast interface with no popups
Frequently asked questions
Is the Number Base Converter free to use?
Yes. The Number Base Converter is completely free with no signup, no limits on normal use and no watermark.
Is my data safe?
Yes. Everything is processed by JavaScript inside your own browser. Your text is never uploaded to our server or stored anywhere.
Does it support Unicode and emoji?
Yes. Text is handled as UTF-8, so Hindi, Chinese, emoji and other characters convert correctly.
Can I convert many values at once?
For most converters you can paste several values, one per line, and convert them all together.
What else is this tool called?
People also search for it as radix converter, base conversion. It is the same free tool.