Crop MP4 Video Online

Crop your MP4 videos in seconds, no downloads or installs required!
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Crop MP4

Need a quick and simple way to crop your MP4 videos? We’ve got you covered! With Flixier you can easily crop videos, convert them from landscape to portrait and much more, all without ever having to leave your web browser!

Crop MP4 Video Online

Make mobile friendly videos

Need to share an MP4 on social media but the format isn’t right? Use our online video cropper to turn it into a Tik Tok, Instagram story or YouTube short!

Trim and cut MP4 videos

Flixier lets you do more than crop videos! You can also use it to trim videos, make cuts and even edit the audio!

Add images, text and logos to MP4

On top of being able to crop videos, Flixier also lets you add images and logos to them, apply dozens of transitions and even add animated text and graphics, all with only a couple of clicks!

Generate subtitles and narration

If you want to, you can generate subtitles for your MP4 videos with the click of a button, or you can use our neural powered text-to-speech feature to create natural sounding voice overs!

How to crop MP4 videos online free

How to crop MP4 videos online free

To start cropping your MP4 video, you first need to import it by clicking the blue Import button. You can import videos from your own computer, Dropbox, Google Photos, Drive and other cloud storage services.


To crop a video, create a new project and drag the clip from your library to the Timeline. Select the video on the Timeline, scroll down until you see the Crop option on the right side menu and use the slider to crop it according to your needs!

Publish or download

When you’re done, click the Export button in the top right corner to start rendering the video. The process is done on our servers and takes only a couple of minutes. When rendering is over, you can save the video to your computer!

Why use Flixier to crop MP4 videos online:

Don’t bother with installs

Flixier runs entirely in your web browser, so you don’t have to bother installing anything for it to work. Just log in and start cropping!

Crop videos faster than ever

Our cloud-powered technology ensures that your videos will always be ready to download or publish in a matter of minutes!

Crop videos on any computer

Because all of the hard work is done on our servers, Flixier runs smoothly on any system so you can crop MP4 on Windows, Mac and Chromebooks!

Crop MP4 online for free

Flixier comes with a free version that offers the same cropping features as the paid plans, so you can try it out and use it to crop videos for free!


I’ve been looking for a solution like Flixier for years. Now that my virtual team and I can edit projects together on the cloud with Flixier, it tripled my company’s video output! Super easy to use and unbelievably quick exports.

Steve Mastroianni -

My main criteria for an editor was that the interface is familiar and most importantly that the renders were in the cloud and super fast. Flixier more than delivered in both. I've now been using it daily to edit Facebook videos for my 1M follower page.

Evgeni Kogan

I'm so relieved I found Flixier. I have a YouTube channel with over 700k subscribers and Flixier allows me to collaborate seamlessly with my team, they can work from any device at any time plus, renders are cloud powered and super super fast on any computer.

Anja Winter, Owner, LearnGermanWithAnja

Frequently asked questions.

Frequently Asked Questions

If you have any further questions, Get in touch with our friendly team
If you have any further questions, Get in touch with our friendly team

How do I crop a video screen size?

How do I crop a video screen size?

To change a video’s resolution (or “screen size”), you need to open it up in our online editor first. Then, click on the Cog wheel in the bottom right corner of the screen to modify the video’s resolution. Once you’re happy with the new screen size, drag the edges of the video to make it fit and click Export to save it!

How do I crop a video size in Windows 10?

How do I crop a video size in Windows 10?

Windows itself offers very limited tools for video editing. That said, you can always fire up your favorite web browser and use our online video cropper to crop your video for free. Just drag it over to your Flixier library, add it to a project and use the Crop sliders to crop it!

How do I convert .MOV to .MP4?

How do I convert .MOV to .MP4?

To easily convert a .MOV file to .MP4 without losing quality, add your .MOV video to your Flixier library, then create a new project and drag the .MOV file to the Timeline. Click on Export. Rendering will take 2 minutes or less and then you will be able to download your video in .MP4 format.

How do I convert .MOV to .MP4?

How do I convert .MOV to .MP4?

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