A foldable tool stand includes a base frame, a platform pivotally and slidingly connected to the base frame at a first side, a leg support having a top end pivotally connected to the base frame, a pair of links pivotally coupled between a second side of the platform and the base frame, a driving member pivotally connected to the links, and a follower set pivotally connected to the base frame. The driving member and follower set interact to selectively lock the foldable tool stand in either an extended supporting position, where the second side of the platform is spaced from the base frame, or a collapsed position, where the second side of the platform lies adjacent to the base frame.