Algodoo

Contains XOR, XNOR, NOR/NOT, NAND, OR/ID, AND logic gates.
The only difference is the color of the controlling laser (lower one on the left of each gate). Each channel is 1 or 0 (except opacity which is always 1). Red is the result if no inputs are on, green is the result if one input is on, blue is the result if two inputs are on. If more than two inputs are received the state does not change.

Also, the inputs pass right through unaffected if the gate's output is 1 (they retain the same laser identity). This means the OR gate is also a splitter.