Resize & Reframe Videos with AI
Change your video's aspect ratio without losing important details. AI-powered smart cropping adapts your content to any platform - YouTube, TikTok, Instagram Reels, and more. Use custom prompts to guide the AI for precise reframing control. Maximum video length: 30 seconds.
Preview
AI Video Resizer in Action
Watch how AI intelligently resizes and expands your video to fit any aspect ratio — no cropping, no quality loss.
How to Use Our AI Video Resizer
Resize and reframe your video to any aspect ratio in 3 simple steps
Upload Your Video
Drop your video into the resizer or paste a URL. Supports MP4 and all major formats up to 30 seconds.
Choose Target Aspect Ratio
Select from 7 aspect ratios - 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, and 9:21 - optimized for YouTube, TikTok, Instagram, and more. Optionally add a custom prompt to guide the AI on how to reframe your scene.
Resize & Download
The AI video resizer intelligently reframes your video, expanding the scene to fit the new ratio. Preview the result and download instantly.
Why Choose Our AI Video Resizer
Resize videos smarter - AI-powered reframing that adapts your content without compromise
Keep Your Subject in Focus
AI intelligently detects and preserves your main subject while expanding the scene around it - no awkward cropping or lost details.
7 Aspect Ratios, Every Platform
Resize to 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, and 9:21. One video, perfectly adapted for YouTube, TikTok, Instagram Reels, and more.
Fast AI Processing, No Quality Loss
Our AI video resizer processes your video quickly while maintaining the original quality. No watermark, all formats supported.
Custom Prompt Control
Guide the AI with your own prompts - describe how you want the scene expanded and the AI follows your creative direction.
Frequently Asked Questions About AI Video Resizer
Everything you need to know about resizing and reframing videos with AI
Traditional resizing simply stretches or crops your video, which often cuts out important content. Our AI video resizer intelligently analyzes each frame, detects your main subject, and expands the scene around it to fill the new aspect ratio - keeping everything in frame without distortion.
Our AI video resizer supports 7 aspect ratios: 1:1 (Square), 16:9 (YouTube/Landscape), 9:16 (TikTok/Reels/Shorts/Portrait), 4:3 (Standard), 3:4 (Portrait), 21:9 (Ultra-wide), and 9:21 (Ultra-tall). Each is optimized for different social media platforms.
Our AI video resizer outputs at 720p resolution. The AI expands the scene rather than stretching pixels, so your video stays sharp and clear in the new aspect ratio.
All resized videos are output at 720p (HD) resolution. Regardless of your input video resolution, the AI video resizer processes and delivers results in 720p for consistent, high-quality playback across all platforms.
Currently, the video resizer supports videos up to 30 seconds in length. This covers most social media content needs including TikTok, Instagram Reels, and YouTube Shorts.
You can upload MP4, MOV, WebM, AVI, and other major video formats. Maximum file size is 100MB. You can also paste a direct video URL instead of uploading a file.
Yes! Our video resizer supports custom prompts. You can describe how you want the AI to expand and reframe your scene, giving you creative control over the final result beyond just choosing an aspect ratio.
Ready to Resize Your Video?
Transform your video to any aspect ratio in seconds. AI-powered reframing keeps your subject in focus - no cropping, no quality loss.