YouTube Thumbnail Resizer
Resize to 1280×720.
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About YouTube Thumbnail Resizer
Upload any image and this tool crops and scales it to YouTube's exact thumbnail spec — 1280×720 pixels at a 16:9 aspect ratio. Your picture is cover-fit and center-cropped so it fills the frame with no stretching, and a live preview shows the precise crop while you fine-tune the zoom and JPG quality before downloading.
It's completely free with no sign-up, watermarks, or limits. Everything runs entirely in your browser using the HTML canvas — your image is never uploaded to a server, so it stays private on your device.
Frequently asked questions
- Is this YouTube thumbnail resizer free?
- Yes, it's 100% free with no sign-up, no watermarks, and no limits on how many thumbnails you can make.
- Is my image uploaded to a server?
- No. All cropping, scaling, and exporting happen locally in your browser using the canvas API. Your image never leaves your device, so it stays completely private.
- What size does it export?
- It exports a 1280×720 pixel JPG at a 16:9 aspect ratio — YouTube's recommended thumbnail specification. This is the ideal size for crisp thumbnails on every device.
- Why is the output a JPG and not a PNG?
- YouTube recommends JPG (or PNG/GIF) for thumbnails, and JPG keeps the file size small — well under YouTube's 2 MB upload limit. You can adjust the JPG quality slider to balance sharpness against file size.
- What if my image isn't already 16:9?
- That's fine. The tool scales your image to fill the 16:9 frame and center-crops the overflow, so it always produces a perfectly-sized thumbnail. Use the zoom slider to reframe which part of the image is kept.
- What image formats can I upload?
- Any format your browser supports, including PNG, JPG, WebP, and GIF. The result is always exported as a 1280×720 JPG.