
offline
Not connected to the internet or another computer network.
Ich muss den Artikel jetzt speichern, da ich im Zug offline sein werde.
I need to save the article now because I'll be offline on the train.
Loading your saved state.

Not connected to the internet or another computer network.
Ich muss den Artikel jetzt speichern, da ich im Zug offline sein werde.
I need to save the article now because I'll be offline on the train.

Figuratively: taking place in the real world, not in the digital space.
Lass uns das Thema nicht per E-Mail klären, sondern uns morgen offline treffen.
Let's not sort out this topic by email, but meet offline tomorrow.
As an adjective, 'offline' is almost always used predicatively (after a verb like 'sein' (to be)) or as an adverb. It is normally not declined before a noun.
Mein Computer ist gerade offline.
My computer is offline right now.
The word 'offline' was borrowed directly from English. It literally means that you are separated 'von der Leitung' (off the line), meaning you have no connection to the network.
Ich speichere die Datei lokal, damit ich sie auch offline bearbeiten kann.
I'm saving the file locally so that I can also edit it offline.
In the meaning 'reale Welt' (real world), 'offline' is often combined with verbs of meeting and communication. Typical phrases are 'sich offline treffen' (to meet offline), 'etwas offline besprechen' (to discuss something offline), or 'jemanden offline kennenlernen' (to get to know someone offline).
Nach monatelangem Chatten haben sie sich endlich offline getroffen.
After months of chatting, they finally met offline.
local
In software, „lokal“ means that data or processes remain on the device itself. „Offline“ means that there is no connection to the internet or another network. Something can therefore be lokal and still online; „offline“ only fits when there is no network connection.

Die App funktioniert auch offline, wenn der Laptop keine Netzwerkverbindung hat.
The app also works offline when the laptop has no network connection.
Die App speichert die Datei lokal auf dem Laptop, obwohl er mit dem Internet verbunden ist.
The app saves the file locally on the laptop, even though it is connected to the internet.