CryptPad : CryptPad is the Zero Knowledge realtime collaborative editor.
Encryption carried out in your web browser protects the data from the server, the cloud ...
Kinto : Kinto is a lightweight JSON storage service with synchronisation and sharing abilities.
droppy : droppy is a self-hosted file storage server with a web interface and capabilites to edit files and view media directly in the browser. It is particula...
Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
SimpleLogin : With email aliases , you can be anonymous online and protect your inbox against spams and phishing. Open-source.
An open-source distributed storage service you can self-host to fullfill many needs.