Mix graham cracker crumbs, melted butter, and 1/4 cup sugar together in a bowl. Press 1/4 the graham cracker mixture into the bottom of each jar.
Beat cream cheese and whipped topping together with an electric mixer in a bowl until well blended. Beat 2/3 cup sugar and vanilla extract into cream cheese mixture until smooth and fluffy. Spoon 1/4 the cream cheese mixture onto graham cracker crust in each jar. Top each cheesecake with sliced strawberries. Refrigerate cheesecakes until serving time.
