See it in action

Here is an application packaged as an AppImage for you to try. Just download the application, make it executable, and run! No need to install. Runs on most 64-bit Linux desktops.

Try Subsurface AppImage (64-bit)

Many upstream projects like Krita, Subsurface, MuseScore, KDevelop, and digiKam have started to provide AppImages directly on their download pages. More AppImages for other applications like Atom, Arduino, Blender, Chromium, Firefox, LibreOffice, and QCAD can be downloaded here (64-bit).