Available in a Pro and Free version, support has to be paid for.
SpecsUpdate
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Pros
Pro Smooth playback
VSDC Free Video Editor exceeds the standard array of functions required for modest editing goals. Faced with a long video conversion: a 7:30 minute video (a part of which was accelerated at 800%) was exported in 20 minutes.
Pro Feature rich for a free app
Pro Good format support
Most major video and audio formats are supported.
Pro Suprisingly wide choice of video effects and transitions
Pro Good quality export
The only free editor which enables a Full HD export.
Cons
Con Interface is not as straightforward as it could be
VSDC exposes a lot of information. And a good amount of that information is non-essential. That results in a slightly cluttered interface that can get in the way of actually editing the material. Similarly, some workflow conventions are dated. For example, cutting a clip needs a separate interface. All of that combined ends in having to learn a lot more about the software before it can be used.