Amara is a free web-based service that allows anyone to easily sub-title and add captions to any video.
As long as you have a URL of a published video, Amara makes it very easy to caption it. The clip may be on a video sharing site or embedded in custom video player and Amara can still get to it.
Amara is made up of three main parts:
a) A subtitle creation and viewing tool (aka the widget)
b) A collaborative subtitling website
c) An open protocol for subtitle search/delivery
All tools inside Amara are free and open-source.
Via Robin Good, 173 Sud, michel verstrepen, Gust MEES, Ricard Garcia, Emilia Carrillo, dinelecoeur, Shona Whyte, Bill Mboutsiadis