About the Number Base Converter
Type in any box and the others update. Uses arbitrary-precision integers, so very large numbers convert exactly.
Number Base Converter
Convert numbers between decimal, hexadecimal, binary, octal and base 36 — exactly, at any size.
- Paste your input
- Choose the options
- Copy the output
Runs in your browser. Your data and files never leave your device.
Frequently asked questions
Can I paste 0x or 0b prefixes?
Yes, 0x (hex), 0b (binary) and 0o (octal) prefixes are accepted.
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