Overlay
Duration badge area
Future UI will show where YouTube duration labels can cover thumbnail content.
Mobile-safe thumbnail checks
YouTube Thumbnail Safe Area Checker
Reserve a safe-area checker for thumbnail readability, edge spacing, and the lower-right duration overlay.
Early preview - noindex until the workflow is fully usable
Planned workflow
Creator image workspace
This page is reserved for a future client-side tool. TubeSnaps will keep image processing local in the browser first, and only use Cloudflare R2 or D1 when a later feature explicitly needs stored media or metadata.
Text
Readable margins
Creators can check whether text sits too close to mobile edges.
Modes
Desktop and mobile
A later version can compare how safe areas change by surface size.
Boundary
Visual guide only
Safe-area checks are design guidance, not YouTube policy or ranking advice.
Related tools
Keep working with this video
FAQ
Common questions
What is a thumbnail safe area?
It is the part of a thumbnail less likely to be covered by UI elements or cramped on small screens.
Will this guarantee better performance?
No. It can help with readability, but it cannot guarantee views or clicks.
Why is this page noindexed?
The public URL is reserved while the full interactive checker is still planned.