Resize any image to the recommended YouTube thumbnail size (1280 x 720 pixels) instantly. Free, private, and works entirely in your browser.
Getting the right dimensions for your YouTube images matters. An incorrectly sized thumbnail can appear blurry or get cropped in unexpected ways, costing you clicks. Here are the current recommended sizes:
| Image Type | Recommended Size | Aspect Ratio | Max File Size |
|---|---|---|---|
| Custom Thumbnail | 1280 x 720 px | 16:9 | 2 MB |
| Thumbnail (4K) | 3840 x 2160 px | 16:9 | 2 MB |
| Channel Banner | 2560 x 1440 px | 16:9 | 6 MB |
| Channel Icon | 800 x 800 px | 1:1 | -- |
Drag and drop any JPG, PNG, or WebP image into the tool above, or click to browse your files. You can also paste an image from your clipboard.
Select "Thumbnail" (1280x720) for standard thumbnails, or pick another YouTube preset like Channel Banner or Channel Icon.
"Fill" crops the image to fill the frame perfectly. "Fit" adds a blurred background to avoid cropping. "Stretch" forces the image to match the exact dimensions.
Choose your preferred format (PNG for quality, JPG for smaller files, WebP for both) and download. The image is ready to upload to YouTube Studio.
The recommended size for YouTube thumbnails is 1280 x 720 pixels with a 16:9 aspect ratio. This is the minimum resolution YouTube recommends, and it displays well across all devices including desktop, tablet, and mobile.
Yes, completely free with no limits. There is no watermark, no signup, and no hidden costs. The tool runs entirely in your browser using your device's processing power.
No. Your image never leaves your device. All processing happens locally in your browser using the Canvas API. We cannot see, store, or access your images in any way.
You can upload JPG, PNG, and WebP images. For downloading, you can choose between PNG (lossless quality), JPG (smaller file size), or WebP (good balance of quality and size).
YouTube allows thumbnails up to 2 MB. If your image is too large, try downloading in JPG format with a quality setting around 80-85%. This usually gets the file under 2 MB without visible quality loss.