Shotcut

Shotcut is a multiplatform video editor that accepts a vast array of audio, video, and image formats for editing or conversion.

This editor is really useful for mixing and matching the resolution and frame rates in a video file. All videos may also be dragged to the interface and dropped directly onto the timeline, ready make the changes you want, such as adjusting the audio, correcting the color, setting the white balance, or adding color saturation or sharpness filters.

Any changes made in the editor can be undone and redone as many times as you like so you don't have to start over if you make a mistake. In addition, the interface includes a full change history so you can see exactly which point you need to go back to.

Shotcut is, without a doubt, a great choice among video editing programs.