Step 01
Select your video clip
Choose a clip from your editing timeline, open AI Tools, and select Background Expand.
Trusted by 1M+ creators
AI BackgroundExpand
Extend video backgrounds with AI. Lose the awkward crops and black bars.
Start creating freeNo credit card required
4.82,100+ reviews
NorthstarLumaWorksOrbitMosaicAtlasBrightlineNorthstarLumaWorksOrbitMosaicAtlasBrightline
AI expander for video: make every background fit the platform
Recorded a portrait clip but need a wide frame for a presentation? Or want landscape footage to feel native in a vertical feed? Vidione uses AI outpainting to extend the edges of your video, much like content-aware fill for moving images. Clips up to one minute are supported.
Upload a video and let the extender build a natural-looking scene around it. Replace black bars, create room for promotional messages, and reuse the same footage across every channel without an expensive reshoot.
How to use our AI background extender:
Step 02
Extend the video background
A progress state appears while Vidione studies the footage and generates the missing surroundings.
Step 03
Preview and export your video
Review the expanded clip, export it, or keep editing with captions, transitions, audio cleanup, and B-roll.
Learn more
Watch our AI Background Expand demo:
AI extender built for video
Expand a moving background the same way you would uncrop an image. Vidione works in one click and supports clips up to one minute, giving you more room for branded assets, campaign messages, and platform-ready exports in one place.
Uncrop and repurpose videos for any social platform
Turn a 9:16 recording into a 16:9 landscape video without sacrificing the important parts of the shot. Create polished content for short-form feeds, video channels, presentations, and professional networks without losing the original story.
Expand and edit your video in one place
There is no need to switch between apps to resize and refine your footage. Expand the frame, add text overlays and captions, clean up the audio, and generate B-roll in one AI-powered workspace.
FAQ
Vidione’s AI Background Expand is an outpainting tool made for moving footage. It studies the visible scene and extends the background across new edges, helping you change the aspect ratio of a video while keeping the result natural from frame to frame.
This tool is built specifically for video. Unlike a static image extender, it maintains continuity across many frames so the added space moves naturally instead of flickering.
Use the editor timeline to uncrop a video:
- Select your clip and open AI Tools.
- Choose Background Expand and set the new aspect ratio.
- Preview the generated edges, then export the expanded clip.
Open a project in the Vidione editor, select a video clip, and find Background Expand inside the AI Tools menu.
Background Expand is designed for common web video formats and supports conversions between portrait, square, and landscape layouts.
Use it to adapt social clips, add space for campaign copy, resize product footage, prepare presentations, and reuse one recording across multiple platforms.
Loved by creators.Loved by the Fortune 500
The first few videos I made with Vidione reached more than 40,000 impressions on LinkedIn.
Travis TylerSenior Content Producer,
PandaDoc
PandaDoc
I found Vidione at exactly the right time. I jumped straight in and started editing without a long tutorial trail.
Sebastian SchurgersHead of Growth Marketing,
Gronda
Gronda
With Vidione I did not need fifteen tutorials. I opened the editor and started making things immediately.
Gwenne WilcoxFounder,
Brand Brainery
Brand Brainery
You can go beyond simply trimming clips. Vidione makes the finished videos feel considered and complete.
Michael GloverDemand Gen Manager,
ConvertFlow
ConvertFlow
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When it comes to amazing videos, all you need is Vidione
Start creating freeNo credit card required
More than an AI background extender
Find more ways to reuse your footage and publish it everywhere. Remove a video background entirely when you need to place a subject into a new scene or branded setting. Starting from scratch? Generate a first cut with AI, refine it with familiar editing tools, and add your captions, colors, and messaging. Vidione helps turn a prompt, an image, or existing footage into a finished video in minutes.