Whatsit is a lightweight, native desktop client for WhatsApp Web built with Qt 6 and Qt WebEngine.
This is free and open source software.
Key Features
- Not Electron-based. It uses system Qt and WebEngine, resulting in significantly lower memory usage, faster startup, and proper KDE/Qt integration.
- Support for system tray icon and notifications.
Website: github.com/devlinman/whatsit
Support:
Developer: devlinman
License: MIT License

Whatsit is written in C++. Learn C++ with our recommended free books and free tutorials.
Related Software
| WhatsApp Clients | |
|---|---|
| Franz | Messaging app for WhatsApp, Slack, and others |
| WhatSie | Feature rich WhatsApp web client based on Qt WebEngine |
| nchat | Terminal-based chat client |
| ZapZap | Progressive Web Application |
| Karere | Native GTK4 application |
| Youp | WhatsApp wrapper |
| Whatsit | Native desktop client for WhatsAp |
| WasIstLos | Unofficial WhatsApp desktop application written in C++ |
| ElecWhat | Simple desktop WhatsApp client |
| WhatsApp Desktop | Wraps the official WhatsApp Web interface |
Read our verdict in the software roundup.
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