Abstract: An improved ladder leveler which is made up of inner square bar and outer square tubes which slidably move axially in relation to each other vary the degree of extension. Locking the same by the insertion of a cotterless pin through aligning holes provided the inner bar and outer walls, the outer walls of said square tubes having ladder rung brackets which are spaced to accommodate ladder rungs; the leveler being fastened to the ladder and ladder rungs locked in place by the threaded engagement of a formed threaded pin which extends through the rung brackets and secured with a hair pin to engage a stile bracket which engages the ladders stile.