[dsun179]

Or RxDB https://rxdb.info/ which also supports edits on multiple tabs.

[alex_portabella]

IMO RxDB isn't a competitor here, we're talking about end-to-end encrypted solutions, RxDB is just a way of syncing JSON documents.

In that sense Firebase, Parse, deepstream.io all handle that problem as well.

What you want though is to operate without seeing your customers data, much more ethical in that you'll never be tempted to sell your users data