Watching online movie without downloading is called movie streaming. How this work? When you watch movie streaming you don't have to wait downloading a file to play it. Instead of this, movie is sent in a continuous stream of data and is played as it arrives. So if you still hesitate about watching movies on stream, here is some most common benefits and minuses: First most obvious thing is that you save time on downloading, other good advantage is instantness, you just have to decide what movie you will watch and click on play, one of bigger minuses in past was quality of video, but now streaming movies is on good way to equalize with downloading, and more sites now is offering even HD quality streams. Second disadvantage can be internet speed, for HD movies needed to have more than 1 Mbps and sometimes up to more than 3 Mbps, but still you can watch movies in slightly lower quality without any problems.
YMovies is a great site to watch free movies online. The site has good number of movies and they regularly update their database for new movies. This site does not host any movie or video on their server, they provide streaming link from various non affiliated sources. You can watch movies directly without registration or signup. The site is fully responsive so you can watch your favorite movies on your mobile tablets or any other portable device easily. The one best thing of this site is they have good filtering system which helps to find your favorite movies easily. Maybe some movies are not available to stream but they provide one option "only available to stream" with the help of this feature you can easily separate those movies which are available to watch online.