An improved trailer hitch coupler is provided that includes a tongue recessed portion, a moveable base plate inside the tongue recessed portion, and moveable coupler arms that close around a trailer hitch, and slide into the recessed portion in a closed position. The trailer hitch coupler can include spring biased locking arms that rest in a saddle to secure the coupler arms in a locked position. The improved trailer hitch coupler provides ease of coupling without accurate alignment between the towing vehicle and the trailer.