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Number Base Converter

Type a number in any base — Binary, Octal, Decimal, or Hex — and all other bases update instantly.

Binary Base 2
Octal Base 8
Decimal Base 10
Hexadecimal Base 16
Custom Base Conversion
Convert between any two bases from 2 to 36.
10
2
→
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🔒 All conversions happen locally in your browser — nothing sent to any server.