Software Recommendations Stack Exchange is a question and answer site for people seeking specific software recommendations. It only takes a minute to sign up.Sign up to join this community
While the (previously) accepted answer was correct, in the intervening years the industry has gone ahead by leaps and bounds... Two very good open-source and extremely actively developed options are
I am not taking exe literaly, but you can setup a desktop application with node-webkit which will basicaly run your webapp localy in a webkit browser. see http://strongloop.com/strongblog/creating-desktop-applications-with-node-webkit/
UPDATE - I just finished a freeware solution for this; check out Scriptonit, I think it's closest to what you need. But I'm surely biased so let's see all the others.