The best open source alternative to Wondershare Filmora is Kdenlive, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Wondershare Filmora and 13 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Wondershare Filmora are Shotcut (Free, Open Source), OpenShot (Free, Open Source), Avidemux (Free, Open Source) and Olive Video Editor (Free, Open Source).
Lumiera is NonLinear Video Editing (NLE) for GNU/Linux developed by the CinelerraCV community. It was born as a rewrite of the Cinelerra codebase called Cinelerra3 but it is now an independent project with its own name.
Astrofox is a free, open-source motion graphics program that lets you turn your audio into custom, shareable videos. Combine text, images, animations and effects to create stunning, unique visuals. Then generate high-definition videos to share with your fans on social media.