How to validate the thumbnail image?

Step 1: Click on the "Choose File" button and select the thumbnail image.
Step 2: Click on the "Validate" button.
Step 3: Wait for the validation to complete.
Step 4: If the thumbnail image is valid, you will see all information it is tested based on.
Step 5: If the thumbnail image is invalid, you will see a report of the errors.

How a valid thumbnail looks like?

1. Aspect ratio: 16:9 or 4:3 is valid. but 16:9 is Recommended.
2. File size: 2MB or less is Recommended.
3. Resolution: 1280x720 (16:9 HD) or 1920x1080 (16:9 FHD) is Recommended.
4. File format: JPG, GIF, BMP, or PNG is valid.

How to make a perfect thumbnail for YouTube?

Step 1: Choose a background image.
Step 2: Add text and graphics.
Step 3: Add a border.
Step 4: Save your thumbnail.
Step 5: Upload your thumbnail to YouTube.

Why a thumbnail is important?

A thumbnail is the face of your video on YouTube. It's the first thing people see when they search for videos on YouTube. A good thumbnail can make your video stand out from the crowd. It can also help you get more views and subscribers.