YouTube Thumbnail Mobile Preview
Preview your own thumbnail with the mobile-style layout already selected. Simulated surrounding text and cards are examples, not live performance data.
Preparing your workspace…
Inspect a small-screen thumbnail simulation
On a small thumbnail, fine outlines and multiword captions can merge. Compare the subject silhouette and largest words first. This view uses your uploaded image in a compact mobile-style layout, not a screenshot of a live YouTube result.
Use the preview as an editing check
Choose a local JPG, PNG or static WebP image, inspect the selected view and compare it with another layout using the view control. If the subject or title is hard to read, revise the original artwork and upload the new version. The preview does not modify or download a redesigned thumbnail.
What the preview cannot predict
No analytics, audience preference, ranking or CTR model runs here. YouTube may display thumbnails differently by context, device and product update. Use real published-video analytics to evaluate performance, and keep an original image at sufficient quality. The selected file stays in the browser.
Common questions
Does this predict clicks?
No. It is a visual editing aid using your image and simulated layouts, with no click-through-rate or search-position prediction.
Can I resize the source here?
This tool previews and checks the source. Open Image Resizer if you need a new pixel canvas.