Gaupol is an editor for text-based subtitle files. It supports multiple subtitle file formats and provides means of creating subtitles, editing text, and timing subtitles to match video. The user interface is designed with attention to batch processing of multiple documents and convenience of translating.
Subtivals provides project subtitles for cinema festivals. Hard copies for film festivals do not always carry subtitles, especially for the hard-of-hearing. Subtivals' goals are the projection and the control of subtitles superimposed on a cinema screen. Projecting subtitles on top of another screen is called soft-titling, surtitling, supertitling, or even sometimes electronic subtitles or virtual subtitles.