Base Converter
Type a number in any field, see it in the others - or convert whole text to binary.
Type a number in any field, see it in the others - or convert whole text to binary.
Type a number into any of the four fields (binary, octal, decimal, or hex) and the other three update instantly. To convert text to binary or back, use the Text ↔ Binary section: paste text and click Text → Binary, or paste space-separated 8-bit binary groups and click Binary → Text.
No - this tool works with plain non-negative integers only. Negative numbers and two's-complement representations aren't supported.
Up to JavaScript's safe integer limit (2^53 - 1). Anything larger shows a warning instead of a silently wrong result.
No. Every conversion runs in your browser with plain JavaScript arithmetic - nothing is uploaded to a server.
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