The most widely used messenger Whatsapp has a dedicated desktop application. Though it has completely similar UI/UX to the WhatsApp for web. The desktop app does the same thing, which was done on WhatsApp for web, i.e. mirroring chat messages from your phone to the next platform.
Whatsapp for desktop is available for both Windows 8+ and Mac OS 10.9+ operating systems and has does also supports all the general keyboard shortcuts.
WhatsApp on desktop needs to be activated in the similar way it used to be done on WhatsApp for web using the QR Scanner feature available on mobile app. And it still needs WhatsApp to be running on your mobile.
To download the Whatsapp application for your desktop, visit their official website’s download section.
Source: WhatsApp Blog