edX & XueTangX Subtitle Download is a Chrome add-on developed by 怡红公子. This free program falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. The main purpose of this add-on is to facilitate the downloading of subtitles from edX and XueTangX online course webpages.

With the latest 0.6 update, the add-on now also supports futurelearn websites. On the course video page, there will be a subtitle download link in the "Related Files" section.

Furthermore, the 0.5 update added support for coursera websites. On the course download page, if the course has Chinese subtitles, an additional button labeled "中" will appear for downloading the subtitles.