About the YouTube Thumbnail Resizer tool
YouTube recommends 1280×720 thumbnails under 2MB. Get the exact size YouTube wants — sharp, correctly cropped, and ready to upload.
Your thumbnail is resized in the browser. Nothing is uploaded, so artwork for an unpublished video stays on your machine.
How to use it
- Add your image.
- Choose the YouTube preset you need.
- Crop or reposition, then download.
YouTube sizes that matter
Getting the dimensions right prevents the platform cropping your image in a way you did not intend.
Current dimensions
- Thumbnail: 1280 × 720 (16:9)
- Minimum width: 640 px
- Maximum file size: 2 MB
- Accepted formats: JPG, PNG, GIF
What to watch for
Most viewers see thumbnails at a fraction of full size — often around 360 × 200 in a sidebar or on a phone. Any text needs to be large and high-contrast to survive that reduction.
The duration badge sits in the lower-right corner, so keep that area clear of anything important.
Designing for the size people actually see
Thumbnails are uploaded at 1280 × 720 but almost never viewed at that size. In a sidebar they render around 168 × 94. On a phone home feed they are perhaps 320 × 180. Search results sit somewhere between. Your design has to survive being shown at roughly one-seventh of the size you created it at.
The practical consequences are consistent: use no more than three to four words of text, set that text very large, and give it a strong outline or a solid panel behind it. Faces work because they remain recognizable when small; detailed backgrounds do not, because they turn to noise.
Two areas to keep clear. The lower-right corner carries the duration badge, which will sit on top of whatever you put there. And on some layouts a progress bar appears along the bottom edge of watched videos, so avoid placing text in the lowest 10% of the frame.
Common mistakes
- Uploading an image whose aspect ratio does not match, and letting the platform crop it for you.
- Placing important content near the edges, where cropping varies between devices.
- Uploading below the recommended pixel size, which looks soft on high-density screens.
Questions people ask
Why did my image get cropped?
Its aspect ratio did not match what the platform expects, so it trimmed the difference.
Should I upload at exactly these dimensions?
Yes where possible. Matching the specification avoids re-compression and unexpected cropping.
Do these sizes change?
Platforms adjust them occasionally. Check the official help pages if something looks wrong.