What is YouTube Thumbnail Size?

Before talking about how to enlarge thumbnails, we'll give you a brief introduction about the suggested size of them to help you get a better understanding. The ideal thumbnail size is 1280 × 720 pixels with a minimum width of 640 pixels, and the ideal ratio for YouTube players and previews is 16:9.

Methods to Enlarge Size of YouTube Thumbnail

Method 1: Use VanceAI Image Upscaler

Powered by a Deep Learning algorithm, VanceAI Image Upscaler is able to automatically enlarge the image and even improve the whole quality by fixing the enlarged pixels meanwhile. Only 3 steps to getting high-quality enlarged images. Let's take a quick look.

Step1: Visit the the official website VanceAI and click "Upload Image" to start.


Step2: After uploading an image, you can choose to enlarge 2x. Or you can pay to enlarge the image with ai to 4k, 6k, or 8k.

Enlarge photo_step 2

Step3: Download the enlarged images

Output of Image Enalrger.

Take a quick look at the performance. You can see the enlarged image is even clearer than the original one. The whole quality is clearly higher and better after enlarging.

Also read: How to Enlarge an Image to Print with the Help of VanceAI

Method 2: Use VanceAI Upscaler Workspace

You can also use VanceAI Upscaler Workspace to enlarge your photo by choosing 1X, 2X, 4X, 8X. Besides, you can adjust parameters by yourself. 

vanceai upscaler workspace


VanceAI Image Upscaler aims to help everyone easily upscale image online without being blurry. Cloud-based service makes it easier to access. You don't need to install anything to use this AI service and it has no requirement for your system. If you love a YouTube video thumbnail and want to enlarge it without being blurry, this AI Image Enlarger can be a great help. Click to get to know more about 10 Top Tools to Blur Background

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