Olive is a free non-linear video editor aiming to provide a fully-featured alternative to high-end professional video editing software. New features are being added every day. It's available for Windows, MAC OS X, and Linux. (GPL)
Linux - Windows - macOS
slowmoVideo is an OpenSource program that creates slow-motion videos from your footage. But it does not simply make your videos play at 0.01× speed. You can smoothly slow down and speed up your footage, optionally with motion blur. (GPL)
Linux - Windows
3 applications