Number Base Converter
Binary / octal / dec / hex / any base
Binary
11111111
Octal
377
Decimal
255
Hexadecimal
FF
Binary (grouped)
1111 1111
73
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Questions
- Is Number Base Converter free?
- Yes. Number Base Converter is completely free, with no account, no sign-up, and no usage limits. It runs entirely in your browser.
- Do my files get uploaded when I use Number Base Converter?
- No. Number Base Converter processes everything on your device, so your files and text never leave your browser. You can verify it yourself: open your browser's Network tab and you'll see no uploads.
- How do I use Number Base Converter?
- Open Number Base Converter in your browser, no install or sign-up needed, then paste, type, or drop in your input and the result appears instantly. Convert numbers between binary, octal, decimal, hexadecimal, and any base 2-36. BigInt-backed so 64-bit-plus values stay exact. Grouped binary view, click-to-copy. Browser-only.
- Is there a file size limit in Number Base Converter?
- There's no hard file or text size limit. Because Number Base Converter runs locally in your browser, the only ceiling is your device's available memory, and everyday files process instantly.