AI Video Expander: Change the Aspect Ratio, Keep the Shot
Expand a vertical video to 16:9, or a wide one to 9:16. AI fills the new space around your footage, so nothing gets cropped out.
Before and after
How to expand a video with AI
Step 1
Upload your clip
MP4, MOV or WebM. Trim it to the moment you want to reshape.
Step 2
Pick the new shape
Go wide for YouTube, tall for Reels, TikTok and Shorts, or square.
Step 3
Get the wider picture
The AI paints the new edges and keeps your subject in frame.
Why expand instead of crop
- Your subject stays whole — no cropping
- Recommended model keeps every original frame and your audio
- Pay per run with credits, no subscription
- A failed run refunds its credits automatically
Need more seconds instead? Make your video longer with the AI video extender.
Start Extending Videos with AI
Sign in, buy credits, and run your first clip. Four models are available — two add seconds, two change the aspect ratio.
No subscription
Credits from $4.99
You pick the model