Uploaded December 2025 | Updated September 2026, 2 weeks ago

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I walk through how I add a thumbnail to a YouTube video using my iPhone. I use the YouTube Studio app to do it. First, I show how to find and open the app.

Then I go step by step to show how to pick a video, tap the pencil icon, and change the thumbnail. You can pick a frame from the video or choose a photo from your camera roll. This helps me make my videos look better right from my phone.