Online Resize MP4

Introducing Ssemble’s “Resize MP4” feature, which allows you to easily adjust the size of your videos and customize them for different platforms and viewers. This tool gives you full control over the dimensions of your videos, making the resizing process simple and efficient.

With a simple click, you can now change the size and shape of your video files. Whether you want to optimize your video for YouTube, create an Instagram Story, or adapt it for other platforms like Twitter or Facebook, Ssemble gives you the power to do so.

Our online video editing app is easy to use and works on Mac, Windows, and mobile devices. It supports various formats like MP4, AVI, and MOV. You can easily adjust the dimensions and resolution of your video. With Ssemble, you can export videos in Full HD without losing quality or accuracy.

Resize MP4 Tutorial Step 1

Choose Canvas Size

Choose the canvas size for any platform.

Resize MP4 Tutorial Step 2

Upload & Resize
Upload your video file and add it to the Canvas. And then crop or resize your video to make sure it fits perfectly inside the frame’s dimensions. Or you can click ‘Fit the Canvas’ or ‘Fill the Canvas’.


Resize MP4 Tutorial Step 3

You can export and download your new resized, cropped video content. You can choose the format, resolution, and frame rate as you want.



Resize MP4 for Social Media

You can easily adjust the size of your videos for different social media platforms using Ssemble’s user-friendly resizing feature. Whether you’re posting on Facebook, Instagram, Twitter, or other networks, make sure your videos look great by matching the right dimensions and aspect ratios. Boost your online visibility and interaction by effortlessly resizing videos to fit perfectly in any social media feed.

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Social Media Channel Required Video Dimension
Facebook 1280 x 720 (16:9)
Instagram Feed 1080 x 1080 (1:1)
Instagram Story 1080 x 1920 (9:16)
Twitter 1280 x 720 (16:9)
LinkedIn 1280 x 720 (16:9)
YouTube 1920 x 1080 (16:9)
TikTok 1080 x 1920 (9:16)
Pinterest 1000 x 1500 (2:3)
Snapchat 1080 x 1920 (9:16)

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Resize MP4, Without Compromising Quality

Ssemble helps you resize your videos easily while maintaining their high quality. It works with videos from various devices like cameras, smartphones, tablets, or webcams. You can resize the video to the perfect aspect ratio without needing a professional editing team. Ssemble is a browser-based tool that offers convenience without compromising video clarity. You can choose the resolution you want (such as 1080p or 720p) and be confident that your video will still look great even after resizing it to your desired dimensions.

Refine, Trim, and Customize Your Content!

Ssemble offers more than just changing the size of videos. It provides features like removing unwanted parts, cutting segments of videos, and combining different video clips seamlessly. With this easy-to-use editing software, you can create amazing video content. Try out our user-friendly online movie maker for free and start your creative journey with Ssemble today!

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Ssemble’s “Resize MP4” feature is a user-friendly feature designed to empower you with complete control over your video dimensions. It allows you to easily alter the dimensions and aspect ratio of your video files to tailor them for various platforms and audiences.

With Ssemble, resizing your video is simple. You start by choosing the canvas size for the specific platform you intend to share your video on. You can then upload your video file, add it to the canvas, and either crop or resize the video to fit perfectly within the chosen dimensions. Alternatively, you can click the ‘Fit the Canvas’ or ‘Fill the Canvas’ options to automatically adjust the video.

Ssemble’s resizing feature covers a wide range of platforms, including Facebook, Instagram (both feed and story), Twitter, LinkedIn, YouTube, TikTok, Pinterest, and Snapchat. You can easily resize your video to match the required dimensions and aspect ratios for these platforms.

Ssemble accommodates a diverse range of video formats, including MP4, AVI, MOV, and more. It seamlessly caters to users on Mac, Windows, and mobile devices, ensuring compatibility and convenience.

Absolutely. After resizing your video, you can export and download it with the export settings of your choice. This includes selecting the format, resolution, and frame rate according to your preferences.

No, Ssemble is designed to maintain the pristine quality of your video’s visuals even after resizing. You can resize your video without compromising on clarity or precision. Choose your desired resolution, such as 1080p or 720p, and rest assured that your video’s quality remains intact.

Yes, Ssemble offers more than just resizing. It provides tools to crop unwanted elements, trim video segments using a user-friendly timeline, and merge different video clips seamlessly. This comprehensive editing suite empowers you to refine and customize your video content.

Yes, you can access Ssemble’s intuitive online video editing app, including the “Resize MP4” feature, for free. It provides an opportunity to explore and enhance your video editing skills without any cost.

To get started, simply visit Ssemble’s online video editing app. Choose the platform you want to optimize your video for, upload your video file, and follow the user-friendly instructions to resize and customize your video. Enjoy the convenience and creative possibilities that Ssemble offers!

For more information and assistance with using Ssemble’s features, you can explore their website’s FAQ section, user guides, or reach out to their customer support team for personalized help and guidance.

I was hesitant to try yet another online video editor besides Adobe Premiere Pro, but Ssemble has proven to be the best one yet. The plugins are amazing and make the editing process so much smoother. Ssemble has become my go-to video editor!


I absolutely love Ssemble! As a freelance video editor, it has helped me increase my productivity tremendously. The plugins are amazing and make editing videos so much easier and faster. Highly recommend it!


Ssemble is a lifesaver! As a small business owner, I don’t have a lot of time to spend on video editing. With Ssemble, I can quickly and easily edit my videos and make them look professional. I love that it allows me to share the project with my coworker. And it's really easy to get feedbacks from them because of the comment feature.


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