YouTube thumbnail preview
Check whether your thumbnail text is readable and your title fits, in the sizes viewers actually see it.
Home feed (desktop)
Choose an image
10:24Your video title goes here
Your channel · 1.2K views
Choose an image
10:24Your video title goes here
Your channel · 1.2K views
Search results & suggested videos
Choose an image
10:24Your video title goes here
Your channel · 1.2K views
Choose an image
10:24Your video title goes here
Your channel · 1.2K views
Mobile
Choose an image
10:24Your video title goes here
Your channel · 1.2K views
How to use the YouTube thumbnail preview
- Choose your thumbnail image (16:9, ideally 1280×720).
- Type your title and channel name.
- Compare the previews, including dark mode.
When it's useful
- Checking thumbnail text is readable on a phone
- Seeing where a long title gets cut off
- Comparing two thumbnail designs
Limits to know
- Layouts are close approximations; YouTube changes its design often.
- Your image stays on your device.
Your privacy
Everything is worked out in your browser. What you type isn't uploaded, saved or shared, and there's no sign-up.
Questions
What size should a thumbnail be?
1280×720 pixels (16:9), under 2 MB, as JPG, PNG or GIF.
Is my image uploaded?
No. The preview is drawn in your browser.