A lighted level tool comprising a body including at least one vial opening, a vial disposed at least partially within the at least one vial opening, a light source for illuminating the vial, an insert member mounted at a predetermined location in the body relative to the at least one vial opening, and at least one an end cap mounted at an end of the body. The insert member is configured to receive the vial therein and to hold the light source opposite an end of the vial. A control circuit for powering the light source is mounted in the at least one end cap.