Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Subtitle Edit - Free subtitle editor with visual sync, time adjustments etc.Subtitle Edit Online · Subtitle Edit Videos · Subtitle Edit 3.
Subtitles Downloader by Checksub - Sometimes you may want to export or edit the subtitling of Youtube videos that you have uploaded or that you're fans of.
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.
Mate Translate - Ultimate translation app for Mac, iOS, Chrome and many more
Time Adjuster - It's Windows application that can: Make your subtitles to appear earlier or later. Convert your subtitle files into other formats. SYNCHRONIZE text with video VERY EASY ! Join & split subtitle files.