Free software that uses Qt

free software to make screencasts and/or live streaming

Calligra Suite is a graphic art and office suite by KDE. It is available for desktop PCs, tablet computers, and smartphones. It contains applications for word processing, spreadsheets, presentation, databases, vector graphics, and digital painting.

Konversation is an Internet Relay Chat (IRC) client built on the KDE Platform and is free software released under the terms of the GNU GPL-2.0-or-later. Konversation is currently maintained in the KDE Extragear Network module, which means that it has its own release cycle which is independent from the main KDE applications. It is the default IRC client in many prominent Linux distributions, such as openSUSE, the KDE spin of Fedora, and Kubuntu.

Nintendo GameCube and Wii emulation software

free software

aRts (which stands for analog real time synthesizer) is an audio framework that is no longer under development. It was best known for previously being used in K Desktop Environment 2 and 3 to simulate an analog synthesizer.

Dooble is a free and open-source web browser that was created to offer improved privacy for users. Currently, Dooble is available for FreeBSD, Haiku, Linux, macOS, OS/2, and Windows. Dooble uses Qt for its user interface and abstraction from the operating system and processor architecture. As a result, Dooble should be portable to any system that supports OpenSSL, POSIX threads, Qt, SQLite, and other libraries.

Streamlabs (formerly TwitchAlerts) is a software company headquartered in San Francisco, California. The company was founded in 2014 and distributes a variety of software centered around live streaming and content creation.

ClipGrab is a donationware video download manager, allowing downloads of videos from a variety of websites such as YouTube, Vimeo, Dailymotion, or Facebook. It has been praised for its user-friendliness, but also flagged as malware by security software. It can convert the downloaded files to other file formats such as MP3, MPEG4, OGG Theora or WMV. It is published as free software under the terms of the GPL-3.0-or-later license. It is developed and maintained by libre media labs GmbH.