Transform your video content creation with Subtitld – the open source software that streamlines your video content creation process.
Gnome Subtitles
Gnome Subtitles is a subtitle editor for the GNOME desktop.
It supports the most common text-based subtitle formats, video previewing, timings synchronization and subtitle translation.
Aegisub
Aegisub is a free, cross-platform open source tool for creating and modifying subtitles.