Aspect Ratio: Use a 16:9 aspect ratio, which is the most commonly used format for YouTube players and previews. For podcast playlists, you can use a 1:1 square aspect ratio (1280 x 1280 pixels).
File Format: Your thumbnail should be uploaded in one of these image formats: JPG, PNG, or GIF.
File Size: Keep the file size under 2MB for videos and 10MB for podcasts.
Be Truthful: Your thumbnail should accurately represent the content of your video. Don’t mislead viewers into thinking they’ll see something different.
No Clickbait: Avoid using overly sensationalized text or imagery to get clicks.
Keep it Clean: Avoid profanity or vulgar language in your thumbnails.
Conclusion
So there you have it β all the rules for thumbnails!
Hope this article is what you needed.
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