Number Base Converter
Convert between binary, octal, decimal, hex and any base 2–36.
Runs in your browser: data never leaves your device. Free, no sign-up. Also known as: binary decimal hex octal, radix.
How to use Number Base Converter
- Paste your input, open a file, or press Sample to see an example.
- Pick a mode or adjust the options; results update instantly.
- Use Copy or Download to take the result with you.
Frequently asked questions
- What does the Number Base Converter do?
- Convert between binary, octal, decimal, hex and any base 2–36.
- Is the Number Base Converter free?
- Yes. It is completely free, with no sign-up, no watermark and no usage limits.
- Is my data safe?
- Yes. This tool runs entirely in your web browser. Your text and files are never uploaded to a server, stored or logged.
- Does it work on mobile?
- Yes. It works in any modern browser on Windows, macOS, Linux, Android and iOS, with nothing to install.
- What other encode & decode tools are there?
- Runeforge has 14 encode & decode tools in Glyph Hall, plus 91 more tools across other categories.
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