Story Format / YouTube Thumbnail

YouTube Thumbnail Maker

Convert any image or video to YouTube thumbnail size (1280×720) — free, instant, private.

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Drop a file here or click to upload
Images (JPG, PNG, WebP) or Videos (MP4, MOV, WEBM) — max 500 MB
Converting…
Download Thumbnail
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Instant
Runs in your browser — no upload to servers
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Private
Files never leave your device
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1280×720
Perfect 16:9 YouTube thumbnail size
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Images & Video
JPG, PNG, WebP, MP4, MOV, WEBM

What is YouTube Thumbnail format?

YouTube thumbnails are displayed at 1280x720 pixels in a 16:9 aspect ratio. The thumbnail is the single most important factor in whether viewers click on your video. YouTube uses thumbnails in search results, suggested videos, the homepage, and subscription feeds. A sharp, correctly sized thumbnail at 1280x720 ensures your content looks professional and stands out in search results and recommendations.

How to resize for YouTube thumbnails

  1. Upload your thumbnail image — JPG, PNG, or WebP.
  2. Choose "Fit + Black Bars" to keep the full image, or "Stretch to Fill" for full 16:9 coverage.
  3. Download the 1280x720 thumbnail and upload it to your YouTube video.

Why use Story Format?

Story Format is a free, browser-based resizer built for speed and privacy. Unlike other tools, your files are never uploaded to any server — all processing happens locally in your browser. There's no sign-up, no watermark, and no limit on how many files you can convert. It supports both images (JPG, PNG, WebP) and videos (MP4, MOV, WEBM) with audio preserved.

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