There are 2 repositories under crypt14 topic.
Manage WhatsApp .crypt12, .crypt14 and .crypt15 files.
A customizable Android and iOS/iPadOS WhatsApp database parser that will give you the history of your WhatsApp conversations in HTML and JSON. Android Backup Crypt12, Crypt14, Crypt15, and new schema supported.
Android to iOS WhatsApp Transferrer