YouTube Thumbnail Safe Zone Checker

What covers a YouTube thumbnail?

Your thumbnail is never shown on its own. The platform places interface elements on top of it, and anything underneath can be hidden from viewers:

• Duration badge (bottom-right). The most common culprit. It sits on top of the lower-right corner on almost every surface, so never put text, a logo or a face there.
• Watch progress bar (bottom edge). Viewers who have started your video see a red bar along the bottom. Thin details along the bottom edge get lost.
• Hover buttons (top-right). On desktop, hovering shows “Watch later” and “Add to queue” icons in the top-right corner.
• Badges and labels. Live, Premiere, “New” and members-only labels can also appear on or around the thumbnail.

The practical safe zone

A simple rule that works on every surface: keep important text and faces inside the left two-thirds and the upper three-quarters of the image. Turn on the Text-safe guide above to see a conservative box that avoids the timestamp, progress bar and hover icons.

Use the Rule of thirds grid to place your main subject on one of the intersections — usually the left or centre-left — and text on the opposite side. This leaves the bottom-right free for the timestamp.

Test readability at small sizes

The size strip under the checker shows your thumbnail at roughly the widths used in a home feed (~360px), search on smaller screens, the Up Next sidebar (168px) and a tiny 120px version. If you can still read the text at 168px, you’re in good shape. If not:

1. Cut the text to three words or fewer.
2. Use a heavier font and make the letters at least a fifth of the image height.
3. Add a dark outline or drop shadow, or put text on a solid shape.
4. Check the contrast with our colour contrast checker.

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