Caprine

Caprine is an app that allows you to easily chat with your Facebook contacts from the comfort of your Mac. This is an unofficial client with several features chosen to enhance your experience.

As soon as you log into your Facebook account, Caprine will present you with a simple and elegant interface. On the left panel, you'll find your most recent conversations and the rest of your contacts. By clicking on one of them, you can start chatting right away. You'll be able to make use of everything offered by Facebook Messenger, including emoji, GIFs, stickers, images from your device, and voice messages.

Among the new features offered by Caprine, you'll find a dark mode that improves visibility, a responsive interface that adapts to all types of screens, a notification system that you can customize to your liking, and more. This app also has several privacy options: blocking the typing indicator so other people can't see when you're typing, hiding the links you open from Facebook, etc.

Caprine is a fantastic alternative for chatting via Facebook Messenger without using the usual ways. Best of all, this app comes with many customization options, so you can completely tailor your experience to your needs.