I built a video comparison app as a fun weekend project. It proved more useful than I expected. So, I'm sharing it with everyone.
Load up to 4 images or videos at once. Compare grades, edits, codecs, upscaling algos, or anything else you want to compare with synchronized playback. You can step frame by frame, zoom in and out, switch between views, and export screenshots.
For the full feature walkthrough, screenshots, installation notes, and downloads, see the LIV Compare homepage:
You can download it there for free. It's a super-tiny app. Only ~3 MB and half of that is the app icon :)
That's it! I hope you find it useful. If you run into any issues or have suggestions, open an issue on GitHub.