it needs to work with mkv files
has to have a gui because the crops are different for each video
should be lightweight, I don't want to install premier just for this
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Sign up to join this communityI don't know if it is "the best" because that is a relative term. But a great option is VirtualDub2.
It is a GUI, preview the cropped result and you can directly stream the audio so it does not recompress for example.
You can also resample the rendered video because cropping changes the dimensions of it.
For anyone wondering, Adobe Media Encoder is great for trimming and cropping large amounts of video at once. Drag video files into the window, choose a preset, and hit the play button. You can create your own presets to reuse.
However .mkv is NOT SUPPORTED.
Do you simply want to trim and crop?
Yes as mentioned in the title.windows life movie maker could be your thing.
movie maker has been deprecated and unavailable in W10 for two years now.ffmpeg could be something for you if you are more skilled with a terminal
as mentioned, a gui is required.