Yes, you can play backgammon directly in your web browser with no download needed. Game Finale runs in the browser, so you open the page, choose backgammon, and start a match against real players or smart bots. The board sets itself up, legal moves are highlighted, and the dice are rolled fairly on the server. Your account and chips sync across devices, so you can continue on your phone later. There is also an Android app on Google Play, with iOS on the way. Everything uses virtual chips only, with no real money involved, so it is free and easy to try.