The Pix image gallery is ideal for browsing and displaying a collection of images.
tokodon
Tokodon is a Mastodon client. It allows you to interact with the Fediverse community.
Kalendar
Kalendar is a calendar application that allows you to manage your tasks and events.
Syphon
Syphon aims to be built on the foundations of privacy, branding, and user experience
in an effort to pull others away from proprietary chat platforms to the matrix protocol.
Tropy
Research photo management.
Manyverse
A social network off the grid.
Sleek
sleek is a todo app based on todo.txt, free and open-source.
nheko
The motivation behind the project is to provide a native desktop app for Matrix that feels more like a mainstream chat app (Element, Telegram etc) and less like an IRC client.
iptux
iptux is an “IP Messenger” client for Linux.
Vnote
VNote is a Qt-based, free and open source note-taking application, focusing on Markdown now. VNote is designed to provide a pleasant note-taking platform with excellent editing experience.