Convert any video to 9:16, 1:1, 4:5 or 16:9 in one click. AI smart-reframe keeps your subject perfectly centered, no black bars, no watermark.
Output
Smart reframe to any aspect ratio
Powered by the world's leading AI video infrastructure
From upload to export in three simple steps.
Add any clip in any current aspect ratio.
Choose 9:16, 1:1, 4:5 or 16:9, or all of them.
AI keeps the subject centered; download clean.
Built-in AI tools that turn raw footage into polished, publish-ready video.
Subject tracking keeps the action in frame.
9:16, 1:1, 4:5 and 16:9 for every platform.
Fills the frame intelligently instead of letterboxing.
Export multiple ratios from one upload.
Resize without losing resolution, up to 1080p.
Clean exports for organic posts or ads.
Real AI-generated videos, created in minutes, no shoot required.
Nano Banana's video resizer instantly converts your footage to the right shape for any platform. Going from a 16:9 YouTube video to a 9:16 Reel, or a square feed post to a vertical Story? AI smart-reframe tracks the action and keeps your subject in frame, no awkward black bars or off-center crops.
Resize once and export every ratio you need, all watermark-free in up to 1080p.
Create your first video in minutes. 25 free credits, no credit card, no watermark.
Resize my video free