AI Resource Lab

How to Resize Videos for YouTube Shorts Using AI

Jeremy Gallimore AI

Jeremy Gallimore

Experience Designer | Visual Storyteller | AI Innovator

Some of the links in this blog post are affiliate links, which means I may earn a commission if you make a purchase through these links at no additional cost to you.

YouTube video Shorts have become a sensation, offering creators a new way to engage with their audience through short, captivating videos. But to ensure your content fits perfectly within the Shorts format, resizing your videos to the correct aspect ratio is essential.

In this guide, we’ll walk you through the steps to resize your videos for YouTube Shorts using AI, ensuring your content is optimized for maximum impact.

Step 1: Choose the Right AI Tool

To make resizing your videos for YouTube Shorts a breeze, we recommend using InVideo. This AI-powered video editing tool allows you to quickly and easily convert your videos to the 9:16 aspect ratio required for Shorts. The best part? It’s free to use for resizing videos! Get started with InVideo using this link: InVideo.

Step 2: Upload Your Video

Once you’ve chosen InVideo, the next step is to upload your video to the platform. Here’s how: 

1. Go to InVideo and sign in or create an account.

2. Click on the “Upload” button on the dashboard.

3. Select your video file from your device and upload it to the platform.

4. Wait for the video to be processed and appear in your media library.

Uploading your video is quick and easy, and InVideo will handle the heavy lifting for you. Now, let’s move on to adjusting the aspect ratio.

Step 3: Select the Aspect Ratio

After uploading your video, it’s time to adjust the aspect ratio to 9:16 for YouTube Shorts. Here’s how:

1. In your InVideo dashboard, click on the video you just uploaded.

2. Select the “Edit” option to open the video in the editor.

3. Look for the aspect ratio settings, typically found in the project settings or toolbar.

4. Choose the 9:16 aspect ratio option from the list.

With the correct aspect ratio selected, InVideo will automatically adjust your video to fit the new dimensions.

Step 4: AI-Powered Adjustments

Now that your video is set to the correct aspect ratio, the AI tool will help you crop and reposition it to ensure all important elements are within the frame:

1. The AI will automatically suggest the best crop and positioning for your video.

2. Review the AI’s adjustments and make any necessary tweaks to ensure the most important parts of your video are visible.

3. Use the preview feature to see how your video looks in the new aspect ratio.

By relying on the AI-powered adjustments, you can quickly ensure your video is optimized for YouTube Shorts without losing any critical elements.

Step 5: Export the Resized Video

Finally, it’s time to export your resized video. Follow these steps:

1. Once you are satisfied with the adjustments, click on the “Export” button.

2. Select the desired resolution and format for your video (1080p is recommended for the best quality).

3. Click “Export” and wait for InVideo to process your video.

4. Download the resized video file to your device.

Now your video is ready to be uploaded as a YouTube Short, perfectly sized and optimized for maximum engagement.

About the Author

Jeremy Gallimore is a leading voice in AI reliability, blending technical expertise, investigative analysis, and UX design to expose AI vulnerabilities and shape industry standards. As an author, researcher, and technology strategist, he transforms complex data into actionable insights, ensuring businesses and innovators deploy AI with transparency, trust, and confidence.

Who We Are

AI Resource Lab is the industry standard for AI reliability benchmarking, exposing critical flaws in today’s leading AI models before they reach production. Through adversarial stress-testing, forensic failure analysis, and real-world performance audits, we uncover the hallucination rates, security vulnerabilities, and systemic biases hidden beneath marketing hype. With 15,000+ documented AI failures and proprietary jailbreak techniques that bypass 82% of security guardrails, we deliver unmatched transparency—helping businesses, researchers, and enterprises make smarter, risk-free AI decisions. Forget vague promises—our data speaks for itself.

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