Aegisub is a free IT tool running on Windows, OS X, Linus and Free BSD, it is an open-source multi-platform software that allows you to create and modify subtitles.
Simple and fast, it enables their editing, particularly in formatting, as well as their synchronisation and has an automatic subtitles translation interface. Useful for film translations, its real-time preview system gives a direct preview when creating and editing subtitles and is guided by time tracking. Aegisub has an automatic spelling corrector that requires the download of a digital dictionary of the desired language. Some dictionaries are available from the Aegisub download site, accessible via the link below. The subtitles are provided in .ass format. There is a portable version of this software for Windows that will allow you to work on your audiovisual projects wherever you want. Aegisub also offers the processing of subtitles specifically for karaoke.
Windows operating system