Aegisub - Aegisub is a free, cross-platform open source tool for creating and modifying subtitles. Aegisub makes it quick and easy to time subtitles to audio, and features many powerful tools for styling them, including a built-in real-time video preview.
Subtitle Edit - Free subtitle editor with visual sync, time adjustments etc.Subtitle Edit Online · Subtitle Edit Videos · Subtitle Edit 3.
Subtitles Translator - Free Online subtitles translator tool. Translates up to 20 files at once.
Subtitle Composer - A text-based subtitles editor that supports basic operations as well as more advanced ones, aiming...
Akbar - Subtitles Translator - Online and free subtitle translator. Allows to easily translate .SRT or .SUB subtitles files to any language of your choice. Also provides intuitive subtitle editor to further refine the translated captions.
Jubler - Jubler is a tool to edit text-based subtitles.