The official WhatsApp Desktop app does not allow you to open raw database files. However, it maintains a local copy of your chats.
No technical knowledge, supports iOS. Cons: Paid, requires trust in third-party software. how to read whatsapp database file on pc
This step is non-trivial. On non-rooted phones, get the key via a local backup (Android allows unencrypted backup via ADB with -key flag). The official WhatsApp Desktop app does not allow
Very old WhatsApp versions (pre-2015) or some custom ROMs might leave databases unencrypted. supports iOS. Cons: Paid
