WebM is an open multimedia file format developed by Google's IT giant. It was first introduced by the developer on May 19, 2010 at the Google I / O conference. Typically, WebM files store video with compression using VP8 technology, as well as audio with compression using Ogg Vorbis compression. The initial developer of VP8 technology is ON2, which Google later acquired. WebM format provides efficient compression and high quality video. The format is supported by Google Chrome, Mozilla Firefox, and Opera. When installing the necessary codecs in Windows, this format is also supported in Internet Explorer.
SWF is a flash animation file format created as a flash development application. In particular, for Adobe Flash. Users of the global network had to watch advertising animations when the picture “comes to life” and changes, you just have to point the arrow of the manipulator on it. This format has gained great popularity in the global network, because it uses videos and banners, as well as special flash-games. Such files usually contain text or animation, in which there are inserts of vector, bitmap images, audio tracks, as well as scripts in the Action Script language. This extension belongs to the category of video files. This format was created in 1995 by the Future Wave Software group of Americans. At that time, Future Splash Animator had the SPL extension. A year has passed. Macromedia bought the extension rights and gave the application a new name - Macromedia Flash. And then, in 2005, this company was acquired by Adobe. It was then that the beginning of the modern history of this expansion was laid. In order to open files with the extension SWF (Small Web Format), you need a special application Adobe Flash Player or a web browser that works with Flash technology. In the browser, Goggle Chrome is a built-in flash player, and therefore there is no need to install anything additionally. Anyone who uses a browser, say Mozilla Firefox, Internet Explorer and others, must install the Adobe Flash module. Creating a SWF file will require Adobe Flash (Professional or Builder).