Resize video for YouTube for free
With quso.ai's YouTube Shorts video resizer, transforming your videos is as simple as a single click! Just select the 9:16 ratio, and your video will be automatically resized. Our advanced technology ensures your videos are perfectly centered and adjusted, ready for YouTube Shorts without any manual adjustments needed. But that's not all—quso.ai can also resize your videos for YouTube in the standard 16:9 aspect ratio. This means you can effortlessly adapt your videos for both regular YouTube uploads and YouTube Shorts, ensuring they look fantastic
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Why resize a video file for YouTube using quso.ai?
Adjust aspect ratio
Transforming your videos for YouTube has never been easier with quso.ai's AI-powered YouTube video resizer. Upload your video, and let quso.ai work its magic to seamlessly adjust the aspect ratio for YouTube Shorts (9:16) and long-form videos (16:9). Enhance your content with personalized touches such as logos, customized backgrounds, text overlays, and more. With quso.ai, you can effortlessly create multiple YouTube Shorts and long-form videos from a single upload, all within one user-friendly platform.
Scale your video clip
After resizing your video for YouTube, easily adjust the framing for the best composition. quso.ai makes this process straightforward. Click on any corner of your video to zoom in or out, allowing you to fine-tune the focus and scale. Drag the video to reposition it once you’ve achieved the desired zoom level, ensuring your subjects are perfectly centered.
Trim video to the preferred length
Use the timeline handlebars to visually set your start and end points, or input exact times. This feature is especially useful for pinpointing specific moments and gives you complete control over the final cut of your video for YouTube.
Auto-resize videos
Automatically resize your videos with AI, ensuring that speakers are never cropped out on YouTube. Our advanced speaker detection technology maintains focus on active speakers, ideal for interviews, presentations, or any video content where speaker presence is crucial.

Change format for YouTube
Resize a video for YouTube with our simple tools. Easily switch between vertical and landscape formats. Our user-friendly editing tools make resizing your videos for YouTube a breeze.

Preserve video output quality
quso.ai ensures that changing the resolution does not compromise your video quality for YouTube. Adjust the resolution without risking pixelation or blurriness. Choose from preset resolutions including 720p and 1080p, regardless if you're uploading from a computer, iPhone, or another device.

How to Resize Your Videos for YouTube Using AI
- Upload Your Video
Drag & drop any MP4, MOV, or MKV file or paste a public YouTube link into quso.ai to begin instantly.
- Select YouTube Format
Choose Standard 16:9 for regular uploads or 9:16 for YouTube Shorts.
- AI‑Auto Resize & Preview
The tool crops, pads, and centers your content to fit your chosen format—check real‑time previews to ensure key subjects remain in frame.
- Download or Publish
Export your resized video as an MP4 or push it directly to YouTube without leaving quso.ai.
Frequently Asked Questions
How do I resize a video to upload on YouTube?+
What size video is best for YouTube?+
How to change YouTube video ratio?+
How to resize video size?+
Resize video for YouTube for free
Resize video for YouTubequso.ai Research
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