FetchFile Video Downloader is a free online service to help you download videos from khanacademy online. Access the khanacademy app or website, copy the video URL and paste it in the input box above to download the video without watermark in a few clicks.
It can be accessed from desktop computers, smartphones (Android, iPhone), iPad and tablets. And save your video as high definition MP4 or MP3 with the best quality.
The service is free, the number of downloads is unlimited, it is simple and safe because it does not require software installation and registration.