Tildamail is described as 'Free, decentralized, and secure email system, developed by Stanford graduates. We are an end-to-end encrypted email system that protects your privacy. Tilda is a standard for DApps backed by self-sovereign data. User data never touches our servers' and is an website in the security & privacy category. There are more than 50 alternatives to Tildamail, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Mac apps. The best Tildamail alternative is Proton Mail, which is both free and Open Source. Other great sites and apps similar to Tildamail are Tuta Mail, Disroot, mailbox and Posteo.