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Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal. Type a value in any base and see all four representations side by side.
Frequently asked questions
How do I convert decimal to binary?
Pick "Decimal" as the source base, type your number, and read the binary value in the result list. Copy with one click.
Does it support negative numbers?
Currently it works with non-negative integers only.
What is the Unicode preview?
When the decimal value matches a valid Unicode code point, the corresponding character is shown — handy for inspecting code points like U+1F600.