On this page we recommend a powerful editing software-MP4 Editor for Mac, and we also teach you how to edit mp4 for mac with this Mac MP4 Editor for Mac.

MP4 Editor for Mac: Intel Version or PowerPC Version. You should choose the proper one to free download.

The picture below is the screen of MP4 Editor Mac. Here we have finished adding mp4 videos into the program by clicking" Add Files" panel.

Press Trim button:

In Trim windown you can freely select the clip you like by dragging the start time and end time sliders surrounded by red circles.

Press Crop button:

In Crop window there are some numbers. Modifying these numbers is to alter the dimensions of the video. dragging the frame around the video has the same effect.

In Zoon option has "Keep original", "Full screen", 16:9 and 4:3 which are output aspect ratios.

Press Effect button:

Drag the corresponding slider to set the video brightness, contrast, saturation and video volume.

Choose Filters option to creat special effects.

Press Snapshot button and Folder button:

Capture images you like when the video is playing on the preview screen and these images are in the defaulted folder.

If you want to join many videos into one, you just need to check "Merge into one file" option.

We provide the MP4 Editor Mac and demonstrate its usage, so have a try.