TRAILZ is an online website where one can watch trailers of movies and web-series of various cinemas like Bollywood, Hollywood and other renowned cinemas. Viewing trailers in higher quality not only enhances the viewing experience but also helps in viewing details in the clip that may get skipped in lower resolution. TRAILZ provides trailers in 4K quality with great audio quality that includes Dolby Atmos. But to watch 4K trailers can be very difficult due to presence of lots of clickbaits over internet. This problem is resolved by TRAILZ. It is build with the motive to provide people genuine 4K trailer of their favorite movies and shows without any hard work at free of cost. Along with trailers, TRAILZ provide a stunning looking webpage with animated banner of recommend shows containing a small description of it which further increases the user experience to another level. By viewing trailers people can decide whether to watch movie or not. Also if someone wants to watch a movie or web series of a particular genre, the website provides different sections for different categories to select from.