KDE is officially using Matrix for collaboration within the community. Matrix is an open protocol and network for decentralized communication. It provides all the features you would expect from a modern chat system: infinite scrollback, file transfer, typing notifications, read receipts, etc. It even provides end-to-end encryption for privacy (for private conversations).
Furthermore, Matrix natively supports bridges to other protocols, such as IRC where KDE also has channels. This means that you can use a Matrix client to join and use IRC channels as if they were Matrix rooms.
See the "Try Matrix" page created by the Matrix Foundation, which has a walk-through of how to start chatting with Matrix.
While registrations on the KDE Matrix homeserver are closed, you can register on any Matrix homeserver and you will be able to talk to anyone using Matrix.
After registration you may use any Matrix website to log in, but KDE provides an instance of Element Web hosted at webchat.kde.org (Registering an account here is disabled, create an account from other webserver and login here ) that you can use anytime to log in no matter where you registered your account.
To log in to the KDE Matrix Webchat with an account from a different homeserver, use your full @username:homeserver.com instead of your plain username, like so:
Support for KDE Matrix servers
Here is a list of rooms maintained by the KDE Matrix Team or KDE-adjacent rooms. If your Matrix client supports browsing spaces (like Element) then you can join the KDE Matrix Space which lets you join it's rooms easily.
You can use https://go.kde.org/matrix/ to create easy-to-use invite links (like these ↓) to :kde.org rooms.
|KDE New Contributors
|Ask questions about contributing to KDE. Do you want to start contributing to KDE? Then this is the Matrix room for you.
|Share your experience with KDE! The KDE user support Matrix room.
|Find out more about KDE's desktop environment here.
|Plasma Mobile developers, users and other interested people.
|QML based Convergent User Interface framework.
|KWin development channel.
|KDE software on Android.
|A free and modular front-end framework for developing user experiences.
|KDE software on macOS,.
|KDE software on Windows.
|KDE software on Debian.
|KDE software on Fedora.
|KDE software on Gentoo.
|KDE software on KaOS.
|KDE for FreeBSD
|KDE software on FreeBSD.
|KDE neon Development
|KDE neon development.
|KDE neon Users
|User support for KDE neon.
|KDE software on Kubuntu.
|Kubuntu (Spanish Community)
|Spanish-speaking community on Kubuntu.
|KDE software on Mageia.
|KDE software on openSUSE.
|Ubuntu Studio development.
|Ubuntu Studio Café (offtopic)
|Off-topic Ubuntu Studio chat.
|KDE developers discuss technical stuff here.
|KDE Visual Design Group
|Visual designers and Graphic artists discuss the look and feel of KDE software here.
|The people from the work group that does promotion and communication with the outside world hang out here.
|KDE Multimedia developers.
|Managing websites and displaying the best the KDE Community has to offer.
|For the suite of KDE games.
|The main localization team for all your translation needs.
|The main room for bug reporters, testers and triagers.
|Packaging KDE Flatpaks
|To assist in packaging KDE apps as flatpaks.
|Packaging KDE on Yocto
|To assist in packaging KDE apps on Yocto.
Here is a list of individual applications that have their own Matrix rooms:
|The personal information management framework.
|A classic music player.
|Train your pronunciation!
|For discussing the multi-purpose note-taking application.
|Previously known as the KOffice Suite.
|Frontend for mathematical software.
|KDE software centre.
|A file manager and KIO related subjects.
|Simple music player aiming to provide a nice experience for its users.
|Educational software for children.
|Connects all your devices.
|KDE Partition Manager
|KDE Partition Manager and KPMcore.
|Manage your databases.
|Manage your finances.
|Manage your photo collection.
|View constellations from your computer.
|A calendar application using Akonadi to sync with external services.
|The advanced plain text editor.
|The room where we discuss KDE's professional video editor.
|The Akonadi-based PIM suite.
|A user-friendly IRC client.
|Data Visualization and Analysis
|The map/globe viewer with OpenStreetMap integration.
|The most powerful open-source PDF reader.
|The configurable subtitle editor/translator.
|A fancy drop-down terminal.
See Global Communities for a list of communication channels, including Matrix, by community and language.