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The thumbnail—it’s the book cover to your video. They say you shouldn’t judge a book by its cover, but we all do it: bold pictures, bright colors, and eye-catching text draw us in. Many of YouTube’s top creators spend hours perfecting their thumbnails, since those images are marketing tools to draw viewers to their content.

Unfortunately, not all YouTubers have the knowhow or resources to create compelling thumbnails. To solve that, we’ve released an awesome new product: Thumbnailer, our new thumbnail generator especially for Fullscreen creators!


Now available on the Fullscreen Creator Platform app for iOS, Thumbnailer is a full-service design tool that makes it simple to create amazing thumbnails that your viewers will want to click.

Thumbnailer gives you tons of choices for video stills, along with great editing tools: whether you prefer vintage filters, bright borders, bold text, or fun stickers, custom thumbnails are now in reach for all Fullscreen creators! Thumbnailer is easy to use, and you can create an unforgettable thumbnail in seconds.

How it works

Once you’ve installed the Creator Platform app on your iOS device, tap Thumbnailer in the navigation menu, then select the video for which you want to make a thumbnail.


Once you’ve chosen your video, Thumbnailer will randomly pick 10 still images from your video as a starting point. If you aren’t happy with any of those 10, just shake your phone to show 10 new ones! Repeat as many times as you need.


When you see a thumbnail you love, tap on it to enter edit mode, where you can apply filters, borders, stickers, and more.


After you’re done editing, tap Apply to send your new thumbnail to YouTube. Well done—you’ve nailed it!


Please note that YouTube updates thumbnails in batches, so it may take a few hours for your new thumbnail to show up on YouTube. But be patient, and please don’t keep resubmitting, because that could delay your upload.

Happy thumbnailing!

Thumbnailer for iOS is just the beginning. Stay tuned for Android and web versions coming very soon!

Don’t have our iOS app yet? Get it free on the App Store today!