YT YouTube tool
YouTube Thumbnail Size Checker
Upload one thumbnail, then test it in six realistic YouTube contexts: desktop feed, desktop search, mobile feed, mobile search, TV feed, and TV search. Use the separate safe-zone canvas to keep the important parts readable before you publish.
Design once. Check every browsing surface.
A thumbnail can look excellent at full size and still fail when YouTube shrinks it, stacks controls on top of it, or places it beside dense metadata. This checker is built around the actual browsing surfaces viewers use, not a generic device mockup.
- Recommended upload: 1280 x 720 px at 16:9.
- Preview context, title length, channel name, and description together.
- Keep focal content inside a practical safe area, then verify it per surface.
Thumbnail setup
Use realistic metadata so you are judging the thumbnail in context, not in isolation.
Desktop search uses the description most visibly. Keep it concise if you want a realistic result preview.
Safe-zone canvas
These are practical placement guides derived from the current UI surfaces below. Keep faces, logos, and headline text inside the green area; use the amber blocks as overlay reserves.
Recommended upload
1280 x 720 px
16:9 source image. This is the export size you should design from.
Desktop feed
Approx. preview slot: 320 x 180 px
Grid cards compress detail quickly, so text needs to stay large and central.
Practical focal safe zone
1088 x 540 px
Keep the important subject, brand mark, and text inside this rectangle.
Overlay reserve
Bottom-right 256 x 120 px
Leave this area clear for timestamp and local UI overlays.
Browsing preview
Switch surfaces to see whether the same thumbnail still reads when YouTube changes the layout around it.
All
Gaming
Music
AI
Aircrafts
3D modeling
Reaction
Podcasts
Cars
Travel
Food
All
Shorts
Unwatched
Watched
All
Shorts
Videos
Recommended
From recommended searches
QC rules built into the checker
Do not judge at full size only
A 1280 x 720 file is the design source, not the viewing size. The real test is whether the idea still lands when the image shrinks inside feed and search layouts.
Keep the message centered
The safest layout is usually one strong subject plus a short phrase inside the focal zone. Avoid placing critical text tight against edges or over the reserved corners.
Test with real metadata
Title length, channel name, and description change how crowded the result feels. A thumbnail that survives in context is more useful than one that only looks good alone.