YouTube Thumbnail Preview
Preview your own thumbnail in simulated home, search and mobile layouts before publishing.
Simulated layouts for checking readability and cropping, not actual platform rendering or click-through predictions. Images are center-cropped to 16:9.
Home feed
Search results
Mobile preview
How to use this tool
- Choose your thumbnail image.
- Enter a video title and channel name.
- Compare home, search and mobile previews. This is a mockup, not a live YouTube check.
Frequently asked questions
Are my selected files uploaded?
The six local tools do not upload selected files. Processing takes place in your browser without saved file history. AI text tools have separate notices: their input is sent to DeepSeek for generation.
Do I need an account or credits?
The six local tools require no account. The five AI text tools require sign-in and use daily free allowances without consuming account credits. Linked AI image and video tools have their own policies.
What are the limits?
Image tools support static JPG, PNG and WebP up to 30 MB and 40 megapixels. Image exports are limited to 16 megapixels and 8192 pixels per edge. Compression may not reduce file size. Thumbnail and safe zone layouts are simulated guides.
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