Autoclip is a rusty, old program I wrote and gave away for free.
It is based on the tool jumpcutter that Cary K. Huang wrote and demonstrated in one of his YouTube videos. I re-engineered a simple Windows desktop version in Java.
Demos were made for the tool in Japanese by Hideki Goya. Here is the video explaining installation and usage, and here is a video edited using Autoclip.
Unfortunately, despite the demo above, the project is currently unmaintained, archived, and dead. A build might still work under newer environments, but if the API calls to ffmpeg have changed, there's a high chance that it will not function properly under new versions.
Be warned, the source is probably way uglier than you think (I was still pretty new to hacking back then).