Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Flamelink.io - Flamelink.io is a headless CMS for Firebase.
e2ee cloud - e2ee-cloud is a open source, self-hosted, end-to-end encryption software.
Contentful - You don't need another CMS. You need a better way to manage content — unified, structured, and ready to deploy to any digital channel.
4sync - A wonderful application that links all of your computers and mobile devices together. Easiest way to back up and sync your files online. Cross platform file management in the cloud
Strapi - Strapi is the most advanced Node.