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One of the most important things to watch out for when curating quality content on YouTube is what people see first: the thumbnail. The content and editing of your video is very important, but you must conceptualize an exceptional cover photo in order to gain traction. Let’s go over how to add or change that thumbnail on your YouTube video.
Read more: How to change your YouTube profile picture
quick answer
To add a thumbnail to a YouTube video, start uploading a new video. In the editing process, tap detailsthen scroll down to my nail. click Download thumbnail And choose a new thumbnail for your video.
To change an existing thumbnail, go to studio.youtube.com and click Content tab on the left. Find your video and hover over it. click details > Download thumbnail.
Go to the main sections
How to add a thumbnail for a new YouTube video
desktop
The first step is to start uploading a brand new video to YouTube. go to Youtube In your browser, then click on the camcorder shape Create button. This has a plus sign in the middle.

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From the dropdown menu, click upload video.

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click Choose files In the Upload videos box, then choose the video you want to upload. Lift it up.

Curtis Joe / Android Authority
Once you start (and finish) uploading your video, YouTUbe gives you a chance to edit it before publishing. In this box, click details.

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Scroll down to the selected section my nailthen tap Download thumbnail button.

Curtis Joe / Android Authority

Curtis Joe / Android Authority
As you can see, there is no button to change thumbnail after uploading a video to mobile.
How to change thumbnail on YouTube video
Changing the thumbnail of an existing video is very easy. It is also possible on both desktop And cell phone.
desktop
Make sure you are logged into the correct account, then go to YouTube Creators Studio. tap on Content Tab from the menu on the left.

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Locate the video for which you want to change the thumbnail. Hover your mouse over it.

Curtis Joe / Android Authority
When you hover your mouse over that video, options will appear next to the current thumbnail. Click the pencil shape details button.

Curtis Joe / Android Authority
Scroll down to File my nail then tap Download thumbnail button.

Curtis Joe / Android Authority
Android and iOS
Open the YouTube Studio app for Android And iOS. Click on Content From the options at the bottom of the application.

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Click on ⠇Button on the video for which you want to change the thumbnail. Then select the pencil shape video editing button.

Curtis Joe / Android Authority
Click on the pencil-shaped icon in the top left of the current thumbnail to open it Edit thumbnail. On the Edit Thumbnail page, tap custom thumbnail Select a new thumbnail for your video from your phone.
Read more: How to upload a video to YouTube
questions and answers
What is the size of the YouTube thumbnail?
Optimized thumbnail size for YouTube 1280 x 720 pixels. The minimum width is 640 pixels.
Can a YouTube thumbnail be 1920 x 1080?
Yes, but it will likely appear polka dots. Optimized thumbnail size for YouTube 1280 x 720 pixels.
Why can’t I add a thumbnail to my YouTube video?
If you can’t add a custom thumbnail to your YouTube video, you may have forgotten to add a phone number to your account. You must verify your phone number before you can add a custom thumbnail. Make sure you complete all verification steps for your account, and you should be able to upload a custom thumbnail to your video.
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