Resize an image to YouTube thumbnail size
Fit any photo to YouTube dimensions — 3840x2160, 1280x720 under 2 MB, or Shorts 9:16. Crop, blur-fit or add borders to match the frame exactly.
JPG, PNG or WebP
Exports at 3840x2160, 1280x720 (under 2 MB), or Shorts 9:16.
Need text and templates? Open the thumbnail studio
Built for one job
Each tool does a single thing properly, with the settings that job actually needs.
Finishes in seconds
No queue and no waiting around — most jobs are done before you look away.
Free and unlimited
No sign-up, no credits, no watermark on anything you download.
How to resize an image to youtube thumbnail size
- 1
Upload your image
Drop any JPG, PNG or WebP photo, or tap to browse for one.
- 2
Choose fit and size
Pick 4K, mobile-safe 1280x720, or Shorts. Crop, blur-fit, or add a solid border.
- 3
Download for YouTube
Get the exact pixel dimensions and file size YouTube expects, first time.
Frequently asked questions
What is the YouTube thumbnail size in pixels?
YouTube recommends 3840x2160 for video thumbnails (16:9). The minimum width is 640 pixels. Our mobile-safe preset uses 1280x720 and keeps the file under 2 MB for phone uploads.
Why does YouTube say my thumbnail is too large?
Mobile uploads are limited to 2 MB. Choose the mobile-safe export preset and JPG format — the tool compresses until the file fits.
Will my image be cropped?
Only if you choose Fill & crop. Fit with blur or Fit with border keeps the entire image visible.
Is this the same as the thumbnail creator?
No. This tool resizes and optimizes quickly. The creator adds text, templates, and layout previews for full designs.
Common tasks
These open the same tool, already set up for a specific job.