YouTube thumbnails use a 1280×720 frame at a 16:9 ratio, and uploading the wrong size gets your image stretched, cropped, or blurred. Drop in any image and resize it to the exact thumbnail dimensions right here in your browser. Nothing is uploaded — the resize happens on your own device.
Pick a target size, then drag the frame to choose exactly what gets cropped. Zoom tightens the crop. Fully local.
The standard YouTube thumbnail is 1280×720 pixels at a 16:9 aspect ratio, and YouTube has long recommended keeping the file under 2MB. Matching that ratio matters most: an image with the wrong proportions gets cropped or letterboxed, so keeping your composition inside 16:9 from the start means nothing important gets cut off. Resizing to exactly 1280×720 also keeps text crisp instead of blurring it during YouTube's own re-scaling.
As of 2026, YouTube has been rolling out support for larger, higher-resolution thumbnail uploads — in some surfaces up to roughly 4K and much larger file sizes — as displays and TV playback push for sharper images. This is evolving and not uniform across every account or upload path, so treat higher-res uploads as a bonus rather than a requirement. Resizing to a clean 16:9 frame remains the safe, universal choice; if you export larger, keep the same 16:9 ratio so it displays correctly everywhere.
This resizer runs entirely on your device, so your image is never uploaded to a server. Drop in a photo or a finished design, set it to 1280×720, and export — free, no signup, no watermark. If you want to go further than a plain resize, take the image into Drewvy's editor to add a cutout, background, and bold text before exporting at the same thumbnail size.
1280×720 pixels at a 16:9 aspect ratio. YouTube has long recommended keeping the file under 2MB, though larger uploads are increasingly supported.
Drop your image into the tool, set it to 1280×720, and export. The resize runs in your browser on your own device.
As of 2026 YouTube has been expanding support for larger, higher-resolution thumbnails, but it's not uniform everywhere. Resizing to 16:9 is the safe universal choice; keep that ratio if you export larger.
Yes. It's free, needs no signup, and adds no watermark. Resizing runs in your browser on your device.
No. The resize happens entirely in your browser, so your image never leaves your computer.