Whatsie is a Lightweight, feature-rich WhatsApp web client written in Qt QWebEngine Library.
Beautiful desktop client for WhatsApp Web available for Linux Desktop. Whatsie uses WhatsApp Web, and it requires having WhatsApp Messenger installed and configured on your mobile device, nowadays Whatsie can be used independently without requiring your Mobile phone to be connected to the Internet. You can opt-in for Whatsapp beta while logging in.
Whatsie is packed with lots of features that are unique in Whatsie most notably the App Lock feature that allows users to set lock Whatsie with a pass-code to avoid access to someone from using your Whatsapp messages while you are away from your laptop or computer.
You can use all the features that WhatsApp web provides, like Sending Voice notes, Sending pictures using your Web Cam, etc.
Light and Dark Themes with automatic switching using set Sunshine to Sunset time
Customised Notifications & Native Notifications support
Mute Audio, Disable Notifications
Quick Theme toggle
Built-in download manager
App Lock feature with auto-lock settings
App permission manager
Built-in Spell Checker (with support for 31 major languages)
Fusion, Adwaita, and Windows widget style support with Dark and Light variants
Full view support, makes the web app container occupy all available space
Dynamic Zoom feature, lets you increase zoom when you maximize the window
Full system integration: Support single instance, WhatsApp web URLs, and more
Other settings that let you control every aspect of Web-app