eSign is described as 'A lightweight, fast, and affordable e-signature tool designed for freelancers, small businesses, and anyone who needs to sign PDFs without the complexity of big corporate platforms' and is a E-signature tool in the office & productivity category. There are more than 50 alternatives to eSign, not only websites but also apps for a variety of platforms, including SaaS, iPhone, Android and iPad apps. The best eSign alternative is DocuSeal, which is both free and Open Source. Other great sites and apps similar to eSign are OpenSign, Docusign, LibreSign and DottedSign.