WhatSie is Light, feature rich WhatsApp web client written in Qt QWebEngine Library and not on Electron.
Whatsie is a simple & beautiful desktop client for WhatsApp Web. It is available for Linux Desktop. This is not an official WhatsApp application and just got first version released. Whatsie uses WhatsApp Web, and it requires having WhatsApp Messenger installed and configured on your mobile device.
WhatSie is packed with lots of goodies, there are many features which are unique in WhatSie most notably the App Lock feature that allows users to set app lock passcode to lock the app so that someone cannot open and access your whatsapp messages while you are away from you laptop or system.
You can use all the features that WhatsApp web provide, like Sending Voice notes, Sending pictures using your WebCam etc.
Light and Dark Themes with automatic switching
Customized Notifications & Native Notifications
Mute Audio, Disable Notifications
BuiltIn download manager
App Lock feature
App permission manager
Built in Spell Checker (with support for 31 Major languages)
Other settings that let you control every aspect of WebApp