Abstract: A knot tying assistance contrivance that will aid in the knot tying of granny, reef, square, or similar knots, comprising parts that separate the loops of specified knots; that control the loop eye size between the inner and outer half knots; that release the loops; that attach loops to contrivance; and that position line with loop-separator structure, all parts assembled so that the outer ends of line such as string, cord, sash, ribbon or rope when tensioned in the knot tying process will not tangle, thereby the loops will be free running and not overcome by resisting forces, and when the contrivance is released, the granny, reef, square, or similar knot is secured holding a resultant tensioned inner half knot.