How To Fix Custom Thumbnail Not Showing In Vertical Youtube Videos
🎬 How to Add a 16:9 Thumbnail to a 9:16 YouTube Video
If you create YouTube Videos, you’ve probably faced this issue: when you upload a 9:16 vertical video (the standard format for Shorts) and try to add a custom thumbnail, it doesn’t always display correctly. On your own channel it might look fine, but when people search for your video or see it suggested, the custom thumbnail often disappears.
Luckily, there’s a simple trick to make sure your thumbnail shows up everywhere—even on Shorts videos. In this guide, I’ll explain how to properly add a 16:9 thumbnail to a 9:16 video so your video looks professional and clickable.
🔹 Why This Happens
YouTube was originally designed for 16:9 horizontal videos. Even though Shorts (9:16) are popular now, the YouTube system still expects thumbnails in 16:9 format. That’s why when you upload a vertical video with a custom thumbnail, it sometimes doesn’t show up outside of your channel.
🔹 The Simple Solution
The fix is to convert your 9:16 Shorts video into a 16:9 format before uploading. Don’t worry—you don’t have to change the actual content. You just add black bars or a background on the sides, so the video fits into a 16:9 frame.
This way, YouTube recognizes the video as 16:9 and accepts your custom thumbnail everywhere.
🔹 Step-by-Step Guide
1. Prepare Your Shorts Video
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Open your 9:16 video in a video editing app (like CapCut, VN, Premiere Pro, or even free online editors).
2. Change the Aspect Ratio
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Set the project or sequence settings to 16:9.
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Your vertical video will now have empty space on the left and right sides.
3. Add Background (Optional)
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You can leave the sides black (which looks clean).
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Or, add a blurred version of your video or a colorful background to make it look more engaging.
4. Export the Video in 16:9
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Export the video as a 16:9 file (usually 1920x1080).
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Don’t worry, it will still look like a vertical video, just inside a horizontal frame.
5. Upload to YouTube
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Upload this 16:9 version of your Shorts video to YouTube.
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Now, when you add a custom thumbnail, YouTube will display it everywhere, not just on your channel.
🔹 Why This Works
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YouTube’s system is built for 16:9 thumbnails.
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By “tricking” the system into thinking your Shorts is in 16:9, your custom thumbnail becomes valid.
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The actual video content still looks like a normal Shorts clip, so the viewer experience doesn’t change.
🔹 Final Tips
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Always design your thumbnails in 16:9 (1280x720 pixels).
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Keep text big and clear so it looks good even on mobile.
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Use bright colors or faces to grab attention.
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Test different thumbnail styles to see which gets the most clicks.
🎯 Final Thoughts
If you want your Videos to stand out on YouTube, thumbnails are key. By simply converting your 9:16 video into a 16:9 format before uploading, you can make sure your custom thumbnail is shown everywhere—in search results, on recommended videos, and on your channel.
It’s a small extra step in editing, but it makes a huge difference in how professional your channel looks and how many viewers click on your videos.
Personally, I have compilation channel on youtube and i used to get confused cause the video used to be vertical, And thumbnail needs to be horizontal. It used to be uploaded but when i search my videos the thumbnail was not shown there so while doing research i found this way. I hope it helps you too if you are facing the same problem.
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