YouTube Thumbnail Resizer
Your thumbnail decides whether people click. This page resizes it to 1280×720, YouTube’s recommended 16:9 thumbnail size, in one step and without uploading anything. Everything runs in your browser — nothing is uploaded. Need a smaller file instead? Compress or convert.
Drag the preview to choose which part of the image is kept. The same framing is used for every image in the batch.
Getting the YouTube thumbnail right
YouTube recommends 1280×720 for custom thumbnails — a 16:9 frame that is shown everywhere from phone sidebars to TV home screens.
16:9, like the player
The thumbnail matches the video frame, so it is never letterboxed.
Timestamp corner
The video length covers the bottom-right corner — keep it clear.
From phone to TV
Big words and one clear subject read at every size.
Now up to 50 MB
The old 2 MB limit was raised in 2026 to allow 4K thumbnails.
About 140 KB–290 KB as JPG
A typical photo at 1280×720 saves to roughly 140 KB–290 KB at good quality — well within the upload limit.
You choose the crop
Filling 1280×720 from a 4:3 phone photo trims about 25% of it. Drag the preview to choose what stays, or tick the fit option to keep everything.
YouTube thumbnail size at a glance
| Size | 1280×720 pixels (0.92 MP) |
|---|---|
| Aspect ratio | 16:9 |
| Ratio | 16:9 |
| Minimum width | 640 px |
| Formats | JPG, PNG, GIF (not animated), BMP |
| File limit | 50 MB (was 2 MB until 2026) |
| Keep clear | Bottom-right corner (video length) |
| 4K option | 3840×2160, same shape |
Make a YouTube thumbnail in 3 steps
- Add your image — drag it onto the box above, or tap to choose it. Several at once is fine.
- The size is set to 1280×720. Drag the preview so faces and words are clear of the bottom-right corner.
- Click Resize, download the file, then upload it in YouTube Studio: Details › Thumbnail › Upload file.
New to image resizing? Read the full resizing guide.
Square sizes
Same width and height — profile photos, icons, product shots:
Landscape sizes
Wider than tall — screens, banners, covers and thumbnails:
Portrait sizes
Taller than wide — passport photos, forms and phone screens:
Change the aspect ratio
Paper, print & photo sizes
Paper and photo sizes in mm, cm and inches, plus DPI tools:
Resize for a platform
Ready-made sizes for social profiles and posts:
Online shop sizes
Product photos, banners and logos for Etsy, eBay and Shopify:
Resize tools
Batch resizing, DPI and crop tools:
Thumbnails that survive every screen
The bottom-right corner is taken. YouTube puts the video length over the lower-right corner of every thumbnail. Keep text, faces and logos out of that corner.
Readable at the smallest size. The same image appears huge on a TV and tiny in the mobile sidebar. Three or four bold words and one clear face or object work at every size; a busy collage does not.
4K thumbnails are now possible. YouTube raised the thumbnail file limit from 2 MB to 50 MB in 2026 so creators can upload 4K thumbnails for big screens. 1280×720 is still the recommended size; if you want the extra detail, resize to 3840×2160 instead — same 16:9 shape.
Related sizes and tools
Often used together with this page:
Frequently asked questions
What is the YouTube thumbnail size?
1280×720 pixels in a 16:9 ratio, at least 640 pixels wide. JPG, PNG or GIF (not animated) are accepted, and the file limit is now 50 MB.
Why can’t I upload a custom thumbnail on YouTube?
Custom thumbnails need a verified account (phone verification) in YouTube Studio. If the option is there but fails, check the file is JPG, PNG or GIF and under the size limit.
What happened to the 2 MB thumbnail limit?
YouTube raised it to 50 MB in 2026 so creators can upload 4K thumbnails. A 1280×720 thumbnail is normally far smaller than either limit.
Does a 1280×720 thumbnail look blurry on a TV?
It looks fine on most screens. For the sharpest result on large TVs you can now upload a 3840×2160 version with the same layout.
Are my images uploaded?
No. Resizing happens entirely in your browser. Nothing is transmitted or stored, and you can disconnect from the internet after the page loads and it still works.
Social media sizes
Facebook, Instagram, LinkedIn, TikTok, Discord, Pinterest and more: