Unpaywall is described as «free browser extension for Firefox and Chrome that gives you a link to a free PDF when you view scholarly articles» and is a Paywall Remover tool in the web browsers category. There are five alternatives to Unpaywall for a variety of platforms, including Online / Web-based, Google Chrome, Firefox, iPhone and iPad. The best alternative is Sci-Hub, which is free. Other great apps like Unpaywall are 12ft Ladder, Bypass Paywalls Clean, Bypass Paywalls and Incoggo.Unpaywall alternatives are mainly Paywall Remover Tools but may also be eBook Libraries. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Unpaywall.