Create a YouTube thumbnail
Design click-worthy thumbnails with text, layouts and safe-zone previews. Export at 4K, mobile-safe 1280×720 under 2 MB, or Shorts 9:16.
Build a YouTube thumbnail at the exact size you need
4K (3840×2160), mobile-safe 1280×720 under 2 MB, or Shorts 9:16.
Just need to resize an existing image? Use the quick resizer
Nothing is uploaded
Your file is processed on your device and never sent to a server.
No waiting
There is no upload or queue, so results appear almost instantly.
Free and unlimited
No sign-up, no credits, no watermark on anything you download.
How to create a youtube thumbnail
- 1
Add your photo
Drop an image, browse your files, or paste from the clipboard. JPG, PNG and WebP are supported.
- 2
Design for clicks
Pick a layout, add a bold headline, and preview how it looks in search and on mobile.
- 3
Export at the right size
Download at 4K, mobile-safe 1280×720 under 2 MB, or Shorts 9:16 — ready for YouTube Studio.
Frequently asked questions
What size should a YouTube thumbnail be?
YouTube recommends 3840×2160 pixels (16:9) for the best quality on large screens. If you upload from a phone, keep the file under 2 MB — our mobile-safe preset exports 1280×720 and compresses automatically.
Can I see how my thumbnail looks on mobile?
Yes. Switch to Mobile preview to see an approximate suggested-feed size, and enable safe zones to avoid the duration badge in the bottom-right corner.
Are my images uploaded to a server?
No. Everything runs in your browser. Your photos and designs never leave your device.
How is this different from the thumbnail resizer?
The studio adds text, layouts, and preview modes. The resizer is a one-step tool when you only need to fit an image to YouTube dimensions.
Common tasks
These open the same tool, already set up for a specific job.