An elevator alignment tool includes a longitudinal frame having rollers being configured to run along the surface of a guide rail of an elevator construction, which frame includes a bias device for biasing the frame against the guide rail and a connecting part configured to be connected to an elevator car or an installation time platform, which tool further includes a laser mounted to the frame. This alignment tool allows an easy alignment of new guide rails to be installed during elevator installation or an easy verification of the guide rail alignment of a ready built elevator construction.