One important decentral service in the internet is xmpp / jabber. A live transport protocol which is mostly used to chat.
For this we host a free xmpp server for open registration under the domain chat.sum7.eu.
So it is at your to free your daily messages on your device (and encrypt then with OMEMO):
You should prefer a native App, the Webinterface is just a alpha-version which could already use OMEMO.
|Gajim||Downloads for most common Desktops|