YouTube Thumbnail Resizer
Get a sharp 1280×720 thumbnail that YouTube accepts.
Drop your image here
JPG, PNG, WebP, GIF… — it stays on your device
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● Your images are processed locally in your browser and never uploaded.
How it works
YouTube thumbnails are 1280×720 pixels (16:9, minimum 640 px wide) and must be under 2 MB in JPG, PNG or GIF. The tool exports exactly that size and warns you if the file is too large (lower the quality to fix it). The guide marks the bottom-right corner where YouTube shows the video duration — keep text away from it.