Thumbnail Tester

Upload your thumbnail and check at real size how it looks across YouTube, on the home page, in search, in the sidebar and on mobile. You'll also see how it looks alongside the title.

Thumbnail image

Choose an image

16:9 · JPG or PNG

Video title

Channel name

Duration

Show in dark mode (YouTube dark mode)

Home / recommendations

14K views · 2 days ago

Search result

14K views · 2 days ago

A short video description appears here...

Sidebar (up next)

14K · 2 days ago

Mobile

· 14K · 2 days ago