Subtitle Edit - Free subtitle editor with visual sync, time adjustments etc.Subtitle Edit Online · Subtitle Edit Videos · Subtitle Edit 3.
OpenSubtitles.org - OpenSubtitles.org was developed for easy downloading and uploading subtitles for movies.
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 Editor - Subtitle Editor is a GTK+3 tool to edit subtitles for GNU/Linux/*BSD.
VEED Subtitle - A simple & fast way to add subtitles to your videos online
Subtitle Workshop - Subtitle Workshop, a free subtitle editor. Official website - download Subtitle Workshop and get Subtitle Workshop news and information.