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Image Tools

YouTube Thumbnail Resizer

Resize any image to the exact 1280×720 YouTube thumbnail size — plus banner and Shorts dimensions. Free and client-side.

Drop an image here or click to browse

Supports PNG, JPG, and WebP — resized instantly, nothing is uploaded

How to use YouTube Thumbnail Resizer.

  1. 1

    Drop your image into the tool or click to choose a file

  2. 2

    Pick the size preset you need

  3. 3

    Preview the result — the tool scales and center-crops automatically

  4. 4

    Choose a format and click Download

Why use this tool.

No guessing at dimensions — the correct sizes are built in

No stretching or distortion — scaling and cropping are handled automatically

Photos stay on your device, safe for personal and ID images

Free, no watermark, no signup

About YouTube Thumbnail Resizer.

YouTube thumbnails must be 1280×720 pixels — upload something else and YouTube stretches or crops it for you, usually badly. This tool resizes any image to exactly 1280×720 in your browser, scaling to fill and center-cropping when your source is not 16:9, so you see exactly what viewers will see before you upload. It also covers channel banners (2560×1440) and Shorts covers (1080×1920). Thumbnails drive click-through rate more than almost anything else on YouTube; starting from a sharp, correctly-sized image is the baseline. Free, instant, and nothing is uploaded anywhere.

Frequently asked questions.

What size should a YouTube thumbnail be?

YouTube recommends 1280×720 pixels (16:9 ratio), with a minimum width of 640 pixels and a maximum file size of 2 MB. This tool outputs exactly 1280×720 — if the file exceeds 2 MB, run it through our image compressor afterward.

Why does my thumbnail look cropped?

If your source image is not 16:9, the tool scales it to fill the frame and trims the overflow from the edges — the same thing YouTube would do, but with you seeing the result before uploading. Keep the important content near the center.

JPG or PNG for thumbnails?

JPG is usually right: smaller files, and thumbnails are photos or rendered graphics where JPG artifacts are invisible at display size. Use PNG only if your thumbnail has large flat-color areas with sharp text.

Is my image uploaded?

No — resizing runs entirely in your browser. Unreleased video thumbnails stay on your device.