YouTube Thumbnail Resizer
Resize your thumbnail image to YouTube's recommended 1280×720 (16:9) in seconds. A correctly sized thumbnail loads instantly and looks crisp on every device — from a phone in 4G to a TV.
Drag & drop your image here
or click to upload — JPG, PNG, WebP up to 25MB
How to Use This Tool
Upload your thumbnail
Drop in your finished thumbnail design as a JPG, PNG, or WebP.
Pick 1280×720
Tap the 1280×720 preset (or enter it as custom dimensions) — the recommended size for standard YouTube thumbnails.
Download & upload
Save the resized thumbnail and upload it as a custom thumbnail on YouTube Studio.
Best Size for YouTube Thumbnails
YouTube's official thumbnail spec is straightforward:
- Recommended size: 1280×720 pixels (16:9 aspect ratio).
- Minimum width: 640 pixels.
- Max file size: 2 MB.
- Formats: JPG, GIF, PNG, or BMP. JPG and PNG are by far the most common.
Why 1280×720 matters: YouTube serves your thumbnail at lots of sizes (search results, end screens, watch page, embedded players, TVs). Starting from the recommended size means YouTube only ever scales down, never up — so your thumbnail stays sharp everywhere.
Common use cases:
- Resizing a Canva or Photoshop export from 1920×1080 down to the recommended 1280×720.
- Fixing thumbnails that exceed YouTube's 2 MB upload limit.
- Resizing screenshots or photos before turning them into thumbnails.
- Creating 9:16 thumbnails for YouTube Shorts.
Frequently Asked Questions
What's the correct size for a YouTube thumbnail?+
YouTube recommends 1280×720 pixels (16:9 aspect ratio) with a minimum width of 640 pixels. Use the 1280×720 preset in the resizer above for a perfect fit.
What's the max file size for YouTube thumbnails?+
YouTube caps custom thumbnails at 2 MB. Resizing to 1280×720 almost always brings JPGs and WebPs well under this limit.
Which format should I use — JPG or PNG?+
JPG is the safer choice for photographic thumbnails because it produces smaller files. Use PNG if your thumbnail relies on sharp text, logos, or transparent overlays.
Can I use a Shorts thumbnail with this tool?+
Yes. Shorts use a 9:16 vertical thumbnail. Try the 1080×1920 preset for a clean vertical thumbnail size.
Why is my thumbnail blurry on YouTube?+
Usually it's because the source image was smaller than 1280×720. Always start from a high-resolution image and resize down — never up.