If you just have an MP4 format video with black edge and want to upload it onto a website or your device, you probably need to crop MP4. This does not require much work but only require some video cropper to help.

Part 1: Why we need to crop MP4 video

Aforesaid, if there is black edge on your MP4 video, you need to remove it and crop MP4 video so that you can upload it onto a website for sharing or simply make the video look more neat. Users usually do not allow any unnecessary image or section that distracts audiences' attention, all they want is to make their audiences focus on the video and nothing else. This is one of the major occasions where users need to crop MP4 video, or video in other formats as well. Another situation where users crop their video is when the video is displayed in an incorrect portrait direction, they need to rotate the video using the crop feature. No matter you want to cut off the unnecessary part, remove any distraction, rotate your video to make it look right, or just make fun, you can crop the video to make it come true. 

Part 2: Crop MP4 video with Video Grabber Pro

To crop mp4 video free, I suggest you choose Video Grabber Pro. This online grabber is mostly suitable for grabbing any ongoing video on the website such as YouTube, Facebook, Vimeo and so on. It is combined with video converter, editor, and recorder. It is said you can make some simple and easy clips for the video and audio you grabbed, and convert video audio to all video and audio formats for different model of devices. Heads-up! It is only applicable to simple editing request absolutely not for advanced users.

When you browse to the website,you will notice the steps are extremely simple to crop the MP4 video. First of all, select and upload your MP4 video.

Windows Media Player

Then, click the Edit button, enter the values of location and size into the blanks from the Crop bar. Finally, when all settings are done, select a format to export the video, and click Convert.

Edit File

Note: Only a very limited amount of features are provided and if you are an advanced users who expect to do more editing to the video, this grabber will likely make you down.

Part 3: Crop MP4 video with Leawo Video Converter

As said, online Video Grabber is not a perfect choice if network is bad or you want more features asides from cropping MP4 files in a plain way. Fortunately, we still have some desktop apps for your reference, among which Leawo Video Converter stands out given the powerful and unlimited features for editing videos. Being developed to convert videos in 180+ formats, this app prevails thanks to 6X speed, diverse editing offerings, 1:1 quality preservation, and simple user interface. Once registered, users are free to convert unlimited number files and are able to enjoy the full range of features to edit files. We can show you an example to crop MP4 on Windows with this app.

Step 1: Download and install the program

Click the button below to install this program on your PC.

Step 2: Add MP4 videos

Drag and drop your MP4 videos here or click Add Video from the toolbar.

Add videos

Step 3: Set to target format

Click Change under the format drop-down menu, and you will be directed to the Profile pane where a ton of formats are available to pick.

Change the output format

Step 4: Edit the video

Click the editing icon to enter the output preview page, where a toolbar is displayed on the left pane for you to edit your video.

Trim video

Step 5: Crop MP4 video

Hit Crop from the toolbar on the left, and you will be able to crop the MP4 file directly on the right. Move the dotted rectangle to locate the screen where you wish to crop, zoom in or out to resize the screen, or click clockwise or anticlockwise button next to the timeline to rotate the video screen. Once all settings are done, click OK to exit this page.

Save the edited video

Step 6: Set an output directory

Click the Convert button and set a directory on the shown page, after which hit the Convert button below to start converting the video.

Set an output directory

Step 7: Monitor the ongoing process

Keep in track with the real time progress through the green progress bar. After all is done, your cropped video will be ready for watching. You can choose to play it within the built-in player or transfer it to other devices for enjoyment.

Monitor the progress

Comparison of Video Grabber Pro and Leawo Video Converter

To make a conclusion here following the above introduction, I would like to list their pros and cons in a table so that users may have better understanding about these apps.

App

Pros

Cons

Video Grabber

  • Free
  • Easy to use
  • Requires network all the time
  • Limited features
  • Slow speed
  • Too simple for advanced users
  • Violates privacy leakage

Leawo Video Converter

  • Fast speed
  • Provides powerful editing features
  • Able to process unlimited files
  • Preserves 1:1 output quality
  • Combines with video converter, blu-ray ripper, editor, downloader
  • Offline support
  • Paid app
  • Needs to install the app to the PC

To sum up, Leawo Video Converter is definitely worth your time and money and eventually all your efforts will pay off. You can rely on this app to learn how to crop a MP4 video and enjoy all exciting features that it provides.