Resize MP4
Adjust video dimensions and resize for any destination directly in your browser.
An online MP4 video resizer
Get your MP4 ready for the social media spotlight right in your browser. With our MP4 resizer, you have the power to customize the width and height of your MP4 to fit the exact specifications you need or choose from our range of preset sizes for any social media platform. Whether you want to create a stunning TikTok vertical video or YouTube horizontal clip without any prior editing experience or convert your HD file to 720p for effortless sharing and storage saving, we've got you covered. Fine-tune your framing, change video resolution, trim your video to perfection, and enhance your audio with cutting-edge AI technology. Add seamless transitions, captivating effects, and so much more, all from one convenient dashboard. From MP4 to AVI, MKV, and beyond, you can resize and edit various video files with ease.
Resize MP4 or any other file format
Whether it's MP4, AVI, MKV, MOV, WEBM, or any other video file format, you can resize, change the aspect ratio, edit, crop, and more with ease. You can even add videos from YouTube or TikTok by just pasting a link into Flixier. No video editing experience required!
Change resolution without losing quality
Adjust the height and width of your MP4 video to fit Instagram, TikTok, or YouTube dimensions easily. Crop part of your video, remove black margins, reframe, zoom, and change video resolution to 1080p or 720p without ending up with pixelated or blurred videos.
Make social-media-ready MP4 videos
Transform your videos to fit any social media platform. Whether it's YouTube, Instagram, or TikTok, you can easily switch between landscape, square, or portrait videos. Whether you prefer presets or want to input your own custom size, Flixier's is your go-to online video resizer tool.
Resize MP4 videos online
Flixier's online video resizer tool makes it simple to resize and edit videos from any device since it runs entirely in your browser. No need to download or install anything on your computer. Simply open Flixier in your browser, upload your video, and start resizing without compromising video quality.
How to resize MP4:
1
Open Flixier
Click the blue Start Editing button to start resizing your MP4 files in Flixier. You can import your video files from your computer, laptop, mobile phone, or other devices. Additionally, you can paste a link into Flixier, and it will instantly add the video to your library.
2
Resize MP4 video
To add your MP4 file to the timeline, simply drag and drop it. You can choose a new size preset easily from the menu on the left side of the canvas. You can adjust the framing by dragging the edges with your mouse. If you need a specific resolution, click on the empty space next to the canvas to open the Canvas Options and enter your custom resolution for your MP4 video.
From the same dashboard, you can adjust the aspect ratio, crop, zoom, or rotate your video. Additionally, you can enhance it with subtitles, motion titles, voiceovers, and more.
3
Save or Publish
After resizing your video file, click the Export button, select the Video format from the drop-down menu, and click the Export and Download button to save it as a high-quality MP4 on your device. With just a simple click, you can then easily publish it directly to platforms like YouTube, Instagram, TikTok, and more.
Why use Flixier to resize MP4:
Reduce video file size
Shrink the size of your content for seamless sharing via email, WhatsApp, or any messenger app. Enhance the playback quality and streamline the process of uploading and sharing with others. Compress videos of any file format directly in your browser, and say goodbye to size limits, transfer delays, playback problems, and more.
Resize with suggested formats
Resize videos using preset dimensions specially designed for social media. No more keeping track of different aspect ratios for each platform. With just a click, switch from landscape YouTube videos to vertical TikTok videos and dominate every social media channel.
Turn long-form content into short clips
Turn videos from YouTube into captivating short clips for TikTok, YouTube Shorts, or Instagram Story. Trim and cut videos online to keep only the most thrilling moments. Add your personal touch with music, sound effects, captions, and video effects. Then, effortlessly share your resized video across all your platforms from a single tab.
Resize videos and publish them from one tab
Flixier caters to all creators' needs, from adding subtitles and enhancing audio to resizing videos for various platforms. But we don't stop here—there's more! With Flixier’s online video resizer tool, you can create and edit your videos online from anywhere and then publish content to multiple social media platforms, all from the same tab, with just a few clicks.
Need more than an MP4 video resizer?
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.
You`re ingood hands
Over 1 million creators use Flixier every month including brands like:
I like Flixier because I can use it anywhere I go and I don`t need a lot of computer requirements but great internet connection. I like how fast it is when it comes to rendering videos and still have the opportunity to continue or start another project while waiting. I appreciate the continuous updates and adjustments because it is necessary for a video editing tool.
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.
I like Flixier because I can use it anywhere I go and I don't need a lot of computer requirements but great internet connection. I like how fast it is when it comes to rendering videos and still have the opportunity to continue or start another project while waiting. I appreciate the continuous updates and adjustments because it is necessary for a video editing tool.
What I like most about Flixier is the flexibility to edit the captions, both in terms of the text and the time where it starts and finish showing it. It gives you full control.
This online free program was extremely easy to use, implement, and integrate into my 9-12th grade tech classes. The projects turned out great and were easy to export. I liked having multiple ways to upload pictures. The software was also easy to understand.
Frequently
Asked
Questions
How do I make an MP4 file smaller?
If you ever need to adjust the size of an MP4 video file, you can easily do it in Flixier with just a few clicks. Tweak the video resolution and aspect ratio to fit your own dimensions perfectly. And if you ever want to reduce the file size, Flixier's video compressor is here to help. It lets you make your files smaller without sacrificing audio and video quality.
How do i resize an mp4 video for free?
You can easily resize an MP4 video file for free using Flixier. You'll have the option to select from various preset video resolutions perfect for any social media platform or input your own custom aspect ratio. On top of that, you can also take advantage of the free video editing tools to enhance your resized video project even further. And if you want to take it to the next level with AI edits, you can upgrade to the PRO or Business plan.
Can I resize an MP4 file on Windows or Mac?
Absolutely! It doesn't matter if you're using Windows, Mac, Linux, or ChromeOS – our online video editor works right in your web browser, so you can resize video hassle-free, no matter what operating system you're using. Plus, you can resize and change video resolution on your computer, tablet, laptop, or even your smartphone with just a few clicks.
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