Base Converter
Type a number in any base and read it back in all the others. Arbitrary precision, so very large values stay exact instead of turning into floating point mush.
Value
Detection understands 0x, 0b and 0o. Underscores and spaces are ignored everywhere.
In every base
Enter a number.
Tap a value to copy it.
Bit board
Click a bit to flip it. Bit 0 is on the right, as usual.
Bitwise
Result
Does it fit
Whether the value fits in each common integer type.