European Software Tools Directory

Proton Mail

Switzerland

EU

Proton offers an encrypted ecosystem comprising email, calendar, cloud storage, and password management. Born at CERN, it prioritizes user privacy with zero-access encryption and open-source code.

Tuta Mail

Germany

EU

Tuta (formerly Tutanota) provides a secure email and calendar service powered by renewable energy. It is open-source and encrypts not just message bodies, but also subject lines and contacts.

Infomaniak kSuite Mail

Switzerland

EU

kSuite is a comprehensive alternative to Microsoft 365 or Google Workspace, developed by Switzerland's leading cloud provider. It includes mail, cloud storage (kDrive), video conferencing (kMeet), and chat, all hosted sustainably.

Mailfence

Belgium

EU

Mailfence is an encrypted email service that includes calendar, documents, and contacts. Based in Belgium, it supports OpenPGP and digital signatures, ensuring complete privacy without third-party tracking.

mailbox.org

Germany

EU

mailbox.org offers a secure, ad-free email inbox powered by 100% green energy in Germany. It features a full cloud office suite, video conferencing, and supports anonymous usage.