Does anyone know free games with no download

Depends what you're looking for;

For smaller, arcade and shooter games online:
www.funny-games.biz
Also try Armor Games and Crazy Monkey Games.

For in-browser RPS:
Dragonfable
Adventurequest
Shadowtale
Adventurequest Worlds

There are many others of course, but these are my favourites.
Hope this helps :)