Avidemux is a free multi-platform video editor designed for simple cutting, filtering and encoding tasks.
Links:
- Code:
https://github.com/mean00/avidemux2/commits/master
- Dev. versions (recommended for x64):
http://www.avidemux.org/nightly/
- Releases:
http://avidemux.sourceforge.net/download.html
- user Forum:
https://avidemux.org/smif/index.php
Good cutter (supporting many different input formats, ex: h264 mp4) with a nice simple QT5 interface.
Supports .py project scripting and filter plugins.