Free tool

See your thumbnail
on YouTube.

Add your thumbnail and title and see them in the home feed, in search, in the small Up next list and on a phone, beside other videos, in light and dark mode. Free, nothing uploaded.

Home feed

Your thumbnail8:24
Y
Your video title goes here: write it to see how it fitsYour channel12K views · 2 days ago
14:07
G
I Tried Every Budget Camera So You Don't Have ToGear Lab1.2M views · 3 weeks ago
9:41
S
The Lighting Setup Nobody Talks AboutSmall Studio86K views · 5 days ago
11:52
M
How I Script a Video in 20 MinutesMaya Creates240K views · 1 month ago

Search results

Up next (smallest size)

11:52
How I Script a Video in 20 MinutesMaya Creates240K views · 1 month ago
Your thumbnail8:24
Your video title goes here: write it to see how it fitsYour channel12K views · 2 days ago
14:07
I Tried Every Budget Camera So You Don't Have ToGear Lab1.2M views · 3 weeks ago
9:41
The Lighting Setup Nobody Talks AboutSmall Studio86K views · 5 days ago

Phone

Your thumbnail8:24
Y
Your video title goes here: write it to see how it fitsYour channel · 12K views · 2 days ago
9:41
S
The Lighting Setup Nobody Talks AboutSmall Studio · 86K views · 5 days ago
FAQ

Win the click
before you post.

Then make the video in one place: Felvero writes the script, records you with a teleprompter and edits the take into a Short.

Try Felvero free
How does the thumbnail preview work?

Add your thumbnail and title. You see them the way YouTube shows them: in the home feed, in search, in the small Up next list and on a phone, next to other videos, in light or dark mode.

Is my thumbnail uploaded?

No. The image stays in your browser and is never sent anywhere. Close the tab and it's gone.

What size should a YouTube thumbnail be?

1280×720 pixels (16:9), under 2 MB, as JPG, PNG or WebP. Design it to be read at the smallest size too: in the Up next list it's shown only about 168 pixels wide.

What makes a thumbnail stand out?

One clear subject, a face with a readable emotion, strong contrast with the feed around it and at most three or four big words that add to the title instead of repeating it. Check it in dark mode: many viewers use it.

Why does my title get cut off?

YouTube shows about two lines. Titles over roughly 60–70 characters are often cut in search and on phones, so keep the important words at the start.

Can Felvero help with the title too?

Yes: try the free YouTube title generator for ten title ideas. In Felvero you also get scripts, a teleprompter over your webcam and an automatic edit.