Among its features are Opera video downloader extensions that allow users to convert videos from video sharing sites into MP3 audio files or MP4 video files. It can download video files in any available quality. Video DownloadHelper also offers options for converting videos to other files formats. For full HD downloads and for downloads without watermarks an additional conversion helper. Do you want to avoid installing software? Video download helper sites do the download work for you, providing conversion and then a download link—you don't.
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