Crop MP4 Video Online Fast and Free
Crop, trim, and resize MP4 videos to any size, straight from your browser. No installs, no delays.
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Use Online on Any Browser
Crop MP4 videos from Chrome, Safari, Firefox, or Edge, with no additional installs. Upload your MP4 and start cropping on any computer, laptop, or Chromebook.
More than Cropping
If you need more than simple video cropping, Flixier’s AI-powered video editor helps you trim clips, adjust framing, and apply smart enhancements or transcription, all in one browser-based workspace, without pulling you away from your original task.
Crop MP4 to Any Size
Choose from built-in presets like 16:9, 1:1, 9:16, or platform-ready formats for Instagram, Facebook, YouTube, or TikTok. Adjust framing precisely, enable safe zones, and ensure your MP4 looks perfect on any social media feed or device.
Format Flexibility
Convert any format, including MOV, AVI, MKV, WEBM, M4A, and more to MP4 automatically. Export in MP4 or GIF without losing quality. Flixier ensures smooth compatibility for editing, sharing, and publishing anywhere online.
How to Crop MP4 Videos
Who this is for
Educators
Business Owners
Social Creators
Need more than cropping MP4 videos?
Edit easily
With Flixier you can trim videos or add text, music, motion graphics, images and so much more.
Publish in minutes
Flixier is powered by the cloud so you can edit and publish your videos at blazing speed on any device.
Collaborate in real-time
Easily collaborate on your projects with Flixier, we offer real-time feedback and sharing of projects.
Still have questions?
We got you!
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?
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?
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.
What file formats are supported?
Flixier supports MP4, MOV, AVI, WMV, M4A, MPEG, GIF, and many other formats. You can also paste a YouTube or cloud link directly into Flixier to import videos instantly.
Can I crop multiple MP4 videos at once?
Yes, you can import multiple MP4s and add them to the timeline, then crop each individually within the same project.
What size can I crop videos to?
You can crop using presets such as 16:9, 9:16, 1:1, 4:5, 2:3, or platform presets for Instagram, Facebook, YouTube, or TikTok. You can also enter your own custom dimensions and crop videos with ease.
