Avisynth - Avisynth is a scripting language and a collection of filters for simple (and not so simple!
Deshaker - Deshaker is a video stabilizer for ...
Video Enhancer - Resize video to HD or 4K with Video Enhancer - a tool implementing motion-based super-resolution method for upsizing video. Use 200+ filters for video processing: denoising, deblocking, subtitler, color correction etc.
Mercalli ProDAD - Mercalli is a program that lets you stabilise shaky footage during post processing.
vReveal - Fix your shaky videos, for free.
Kdenlive - Free and open-source, full-featured video editor.