Growler was purchased as Experiment on Lake Ontario during 1812, and was first commanded by Sailing Master M.P. Mix. She was actively employed with Isaac Chauncey's squadron on Lake Ontario from 1812 to 1814. Growler took part in attacks on Kingston, York, and Fort George and the engagement with the British squadron 7–11 August 1813. She was captured by the British on 10 August 1813, and recaptured on 5 October 1813 by USS Sylph, Growler was libelled and purchased by the United States Navy, rejoining the squadron.