QuickTime Player is a free multimedia player. You can use it to view many kinds of files, including video, audio, still images, graphics, and virtual reality (VR) movies. QuickTime supports the most popular formats on the Internet for news, sports, education, movie trailers, and other entertainment.
QuickTime is also a multimedia architecture that other applications can leverage. Some of the most popular software-such as iTunes, iMovie, and Final Cut Pro from Apple, as well as many third-party programs-uses the QuickTime architecture for important multimedia functions. These applications require QuickTime to be installed in order to function properly.