YouTube Thumbnail Size Guide: Ideal Specs & Aspect Ratios
What is the best YouTube thumbnail size? Learn the exact resolution, aspect ratio, file size limit, and file formats required for high CTR.
Try the YouTube Thumbnail CTR Preview Tool
Upload your design and test how it looks in sidebars, searches, and mobile feeds next to competing videos. Ensure your text isn't cropped or covered by YouTube's duration timestamp.
Open Thumbnail PreviewBest YouTube Thumbnail Practices: Design for Higher CTR
Pro techniques for YouTube thumbnail design. Master the rule of thirds, select high-contrast colors, and avoid timestamp overlap.
How to Make Clickable Thumbnails: CTR Secrets Revealed
The visual psychology behind high-click thumbnails. Learn the curiosity gap, emotional triggers, and typography contrast.