YouTube Thumbnail Previewer
Test your CTR before you publish. See your thumbnail inside YouTube's actual layout across all devices.
Upload a thumbnail and click Generate
How to Preview Your YouTube Thumbnail
Upload Thumbnail
Drag & drop or click to upload your 1280×720 thumbnail
Enter Details
Add video title, channel name, and metadata
Generate Preview
Click to see your thumbnail in real YouTube layout
Test Devices
Switch between desktop, mobile, and search views
Why Use Our Thumbnail Previewer?
Multiple Device Views
Preview how your thumbnail looks on desktop, mobile, tablet, and in search results
Real YouTube Layout
See exactly how your thumbnail appears in actual YouTube interface
Test Positioning
Shuffle thumbnail position to see how it stands out among other videos
Frequently Asked Questions
What size should my YouTube thumbnail be?
YouTube recommends 1280×720 pixels (16:9 aspect ratio) with a maximum file size of 2MB. Use JPG or PNG format for best results.
Can I test my thumbnail on mobile devices?
Yes! Our tool lets you switch between desktop, mobile, tablet, and search result views to see exactly how your thumbnail appears on all devices.
Is this tool free?
Completely free! No registration, no payment, unlimited previews. Test as many thumbnails as you want.
Does this predict my actual CTR?
While we can't predict exact CTR, seeing your thumbnail in real YouTube context helps you identify if it stands out and attracts attention compared to other videos.