Nextcloud
/ storageNextcloud is the premier open-source alternative to Google Workspace and Microsoft 365, giving you absolute control over your data. It provides a complete suite of productivity tools—file storage, calendar, contacts, video calls (Talk), and collaborative document editing—hosted on your own private server or a trusted provider. By self-hosting Nextcloud, you remove the “cloud” provider from the equation entirely, ensuring that your photos and documents are not being scanned for advertising or AI training data.
It features a modular plugin architecture, allowing you to add functionalities like password managers, music players, and tasks. Nextcloud also supports server-side encryption and End-to-End Encryption (E2EE) for folders, providing robust security. For organizations and individuals who want the convenience of cloud sync without submitting to Big Tech surveillance, Nextcloud is the ultimate sovereign solution.