Video Ratio Changer to Fit Any Screen and Platform Instantly
Change your video's aspect ratio online for free with Flixier. Switch between 9:16, 1:1, 16:9, and 4:5 right in your browser. Since your files stay on your computer, there are no upload limits, no size caps, and no waiting around.
Over 1 million creators use Flixier every day including brands like:
How to Change Video Aspect Ratio Online
Change Your Video to the Right Aspect Ratio
Resize for Short-Form Content
Change your widescreen clips into vertical videos in just one click. Our on-page tool lets you change aspect ratio instantly so you can resize for TikTok, YouTube Shorts, and Instagram. Crop your video without losing any of your original video quality.
Adjust Your Video’s Framing
Remove unwanted black bars or edges around your frame without installing software. Use the built-in video resizer to reshape your footage without dealing with slow internet speeds. Your video never leaves your device, keeping your private files completely secure.
Prepare Clips for Social Feeds
Square and vertical layouts get more views on mobile screens. Change your clips to a 1:1 or 4:5 ratio to resize for Instagram posts and Facebook feeds. Flixier helps you fit your content to any screen size without any editing skills.
Continue Editing Right Away
Click a single button to open your reshaped clip and edit your video online with Flixier. You can add text, apply transitions, or generate automatic captions. Get your videos ready for any platform without having to switch between different apps.
Everything you need to create
and finish AI videos
Who This Is For
Marketers
Fix your video ads to match every social media platform specification. Keep your product videos looking sharp, clean, and professional on both desktop and mobile screens
See How It WorksEducators
Business Owners
Social Creators
Unlike any tool
you've used before
“I have over 11 years in the broadcast industry, building teleproductive facilities, using high-end editing equipment. And this is better than anything else I've used in my lifetime.”
Still have questions?
We got you!
How do I change a video's aspect ratio for free?
You can change your layout with Flixier right inside your web browser. Just select your file, choose a new Aspect Ratio like 9:16 or 1:1, and the tool adjusts it instantly. Since it processes files directly on your computer, it is free, fast, and has no size limits.
What aspect ratios can I switch to?
You can switch between all the popular options including vertical 9:16 for mobile phones, square 1:1 for social feeds, widescreen 16:9 for monitors, and 4:5 for timeline posts. This helps you fit any video to any screen or social media platform.
Can I change the ratio without losing quality?
Yes, Flixier changes the shape of your video while maintaining the clarity and quality of your clip.
Do I need to upload my video or install an app?
No, you do not need to install any software or upload your files to a server. The tool works entirely inside your web browser on desktop or mobile. Your files never leave your computer, so you do not have to wait for slow uploads.
Can I edit my video after changing the ratio?
Yes, after you finish changing the aspect ratio, you can click Edit in Flixier to edit your file further in Flixier. This lets you cut parts out, generate animated subtitles, or insert audio using our full online video editor without needing to download another app.
