YouTube Thumbnail Preview
Upload your thumbnail and see exactly how it will look on YouTube's home feed, search results, related videos, and mobile — before you upload.
Drop your thumbnail here
or click to browse
Preview Contexts
Desktop Home Feed
~360×202 pxYour Video Title Goes Here — This Is How It Looks
Channel Name • 1.2M views • 2 days ago
Example Video Title For Context
Other Channel • 500K views • 1 week ago
Mobile Home Feed
~168×94 pxYour Video Title
Other Video
Search Results
~246×138 pxYour Video Title Goes Here — This Is How It Looks in Search
Channel Name
1.2M views • 2 days ago
This is where your video description would appear in search results, giving viewers more context about what...
Related Videos (Sidebar)
~168×94 pxYour Video Title
Channel Name
1.2M views
Why Preview Your Thumbnail?
YouTube displays thumbnails at wildly different sizes depending on where they appear. A thumbnail that looks great at full resolution might be completely unreadable at mobile size. Previewing before upload prevents costly mistakes.
Desktop Home Feed
Thumbnails appear at ~360×202 pixels in a grid layout. Text is readable, faces are visible, and colors pop. This is the most forgiving context.
Mobile Home Feed
Thumbnails shrink to ~168×94 pixels on phones. Over 70% of YouTube views happen here. If text isn't readable at this size, your CTR suffers.
Search Results
Thumbnails appear at ~246×138 pixels alongside title and description. Search thumbnails compete directly with 10+ other results — they must stand out.
Related Videos
Small sidebar thumbnails at ~168×94 pixels. These drive significant watch time but are tiny. Simple, high-contrast designs work best here.
The Mobile Test
Before uploading any thumbnail, shrink it to ~150 pixels wide and view it on your phone. Ask yourself:
- Can I read any text in 1 second or less?
- Is the main subject instantly recognizable?
- Does the emotion or energy come through?
- Is there enough contrast to stand out from other thumbnails?
- Would I click this if I saw it in my feed?
If the answer to any of these is "no," redesign before uploading. This tool lets you run that test instantly.
Generate Thumbnails That Work at Every Size
ThumbnailMaker.ai automatically designs thumbnails optimized for mobile, desktop, search, and related videos. No guesswork — just describe your video and get a thumbnail that performs everywhere.
Create Optimized Thumbnails