SRT, or SubRip Subtitle, is a widely used file format for storing subtitles. It contains text that displays on-screen during video playback, along with timing information that indicates when each subtitle should appear and disappear. SRT files are simple text documents, making them easy to create and edit with basic text editors. The SRT format is popular due to its compatibility with various media players and video editing software. It supports multiple languages and can be used for accessibility, allowing viewers to follow along with dialogue in films, TV shows, and online videos.