Disclaimer

Last updated: 2026-10-25

Not affiliated with YouTube or Google

Thumbnail Preview Lab is not affiliated with, endorsed by or sponsored by YouTube or Google. YouTube is a trademark of Google LLC. Where the Site writes "for YouTube" or "YouTube home feed", it only describes the place the tool helps you prepare for. The Site does not use YouTube's logo or icons.

Previews are illustrations

The previews on the Site are generic illustrations drawn in your browser. They are not exact copies of any platform's pages. Real layouts, text sizes, number of title lines and the look of the duration badge differ by device, app version, language and over time, and may change without notice. A preview here does not promise how a thumbnail or title will appear in practice.

No promise of results

We make no promise that using the Site will improve views, clicks, watch time, revenue or any other result. Choosing a thumbnail and a title is a judgment call, and what works for one channel may not work for another.

Requirements can change

The thumbnail requirements shown on the Site (size, ratio, file size, format) come from the platform's public help page, checked on the date shown beside them. The platform can change them at any time. Check the official page before you upload.

Your images and rights

Images you add stay in your browser. You are responsible for having the right to use them.

Planned features

The "AI thumbnail score" button is a preview of an idea. The feature does not exist, and nothing can be bought on the Site.

Contact

Questions about this disclaimer: federicoardorussoa50970@gmail.com