The best part about this tool is that it gives you multiple download options in terms of resolution, size, and format. It’s called WonderFox Free HD Video Converter Factory, a two-in-one safe & free program that can save movies, series, songs, and playlists from online without any hassle.
And here’s such a downloader that I often use. However, if you want to download web series from these platforms, you will have to rely on a third-party downloader. Besides the web series download websites mentioned above, YouTube, as well as many other video streaming sites, serves also an astonishing amount of exclusive good-quality web series for free watching.