Whatly is a native desktop wrapper for WhatsApp Web, built on Qt and QtWebEngine. It brings WhatsApp out of the browser tab and into a proper desktop application with system integration, privacy controls, and customization options unavailable in a plain browser.

This is a fork maintained by Ángel Guzmán Maeso, based on the original WhatSie created by Keshav Bhatt and released under the MIT licence.

Core features:

• Multiple WhatsApp accounts: as separate windows or as tabs in one window, each with its own session and settings
• Scheduled messages, sent later and delivered on the next launch if the app was closed when they came due
• Fourteen chat themes, a chat wallpaper and custom CSS
• Privacy blur that hides the chat list and open conversation until you hover
• Choose the font family WhatsApp Web renders in, plus an adjustable interface font size
• Spell checker with 31 languages, several checked at once
• App lock with PIN protection and a configurable auto-lock timeout
• Light and Dark themes, optionally following the system preference live

Desktop integration:

• Native system notifications and custom in-app notification popups
• System tray with an unread badge, an optional monochrome icon and a connection-status indicator
• Unread count shown on the taskbar (Unity LauncherEntry: KDE, Dash-to-Dock and others)
• Connection watchdog that reloads a stalled session, and optional automatic reload after a page crash
• Global keyboard shortcuts and a built-in download manager
• Per-session audio mute and notification suppression
• HiDPI/4K scaling, configurable zoom and a custom user-agent string
• Runs on Linux and Windows (plus an experimental macOS build); interface translated into 15 languages