Subtitling is a type of audiovisual translation with its own techniques, rules and criteria. Before going any deeper on this topic, the main thing to keep in mind is that this type of translation is part of the “subordinate translation.”
Jubler is an open source software for creating subtitles useful in film translation. Free, it allows you to create new subtitles as well as convert, modify or correct existing subtitle files.
Checksub is an online application with a free version to generate automatic subtitles for videos.
Thanks to its advanced speech recognition, this technology transcribes your videos with precision synchronizing the subtitles and the images.
Avi ReComp is a free video editing software useful for film translation and runs only in Windows. It allows you to recompress .avi files with audio tracks in the formats .mp3, .wav, .ac3, .dts and .ogg but also .avi files without these formats.
Time Adjuster is a free, Windows-only application that lets you synchronize the subtitles of a video with the visual to which they correspond. It is used particularly in audio-visual translation when there is a lag between the subtitles and the image.
VOBSub is a free software package running in Windows that allows you to play a video file with subtitles. It corrects audio-visual translation errors, particularly in terms of timing, allowing synchronization of the subtitles with the image.
Very popular with professional translators and translating agencies, Subtitle Workshop is a free software for creating subtitles running in Windows. Not only can the subtitles be created but also edited, converted and saved in 60 different formats via the Subtitle API library.
Sublight is a free subtitle search software that works with the Internet. It allows you to find subtitles from a film by searching them in the database of subtitles referenced on the site subtitles-on.net.
DVDSubEdit is a free software that runs on Windows and allows the processing of .vob or .sub files. It allows you to view and edit the subtitles directly in the subtitled files.
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.