OpenShot Video Editor is a free and easy to use video editor for Linux.
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Pros
Pro Easy to learn interface
By using a clean interface that is uncluttered and simple to understand the program allows for intuitiveness that is not always seen in other video editors.
Pro Free and open source
Pro GPU rendering
The GPU rendering is said to still be in beta, but works smoothly, even on low end GPU.
Cons
Con The GarageBand of video editing
Not a terrible downside, unless you are looking for the latest, fastest, cutting edge production software. It does small things extremely well, but has difficult workarounds for more extreme edits.
Con Timeline only zooms in to eight seconds
Although this is supposedly fixed in the daily builds, it is not out for the public yet, and it can be very frustrating to align and grab clips that are less than eight seconds long.
Con Editing effects is not intuitive at all
Applying effects is as easy as drag and drop. But if you want to edit them, you'd need to right click on each clip and select Properties. You'd need to experiment with not-so-well documented parameters which take forever to preview just to see if you are on the right track. It is sort of easy to learn unless you want more than drag and drop controls.