A board alignment tool includes a first plate having a bottom end and a top end. The bottom end is pointed. A second plate has a first end and a second end. The first end is pivotally coupled to the first plate. A catch is attached to the second plate adjacent to the second end. The catch extends in a substantial same direction as the bottom end when the second plate is oriented perpendicular to the first plate. The bottom end is extendable into a first board and the catch is extended into a second board. The top end is urged away from the second board and the second board pulled toward and against the first board.