Tools / YouTube Tools / YouTube Thumbnail Resizer
YouTube Thumbnail Resizer
Resize any image to the YouTube-recommended 1280×720 px thumbnail size — free, instant, and nothing uploaded.
✂️ Resize to YouTube Thumbnail (1280×720)
Click or drag an image here
Processed locally — never uploaded
Frequently Asked Questions
What is the ideal YouTube thumbnail size?
YouTube recommends custom thumbnails at 1280×720 pixels with a 16:9 aspect ratio. The minimum width is 640 pixels. Files should be under 2 MB in JPG, PNG, or WebP format.
Does this tool crop or stretch my image?
The resizer fits your image into the 1280×720 canvas. Depending on your image's original aspect ratio, it may add small letterbox bars to maintain proportions rather than distorting the image.
Is my image uploaded to a server?
No — the resizing is done entirely in your browser using the HTML5 Canvas API. Your image never leaves your device, keeping it completely private.
Why do custom YouTube thumbnails matter?
Custom thumbnails significantly improve click-through rate (CTR). Studies show that videos with eye-catching, correctly sized custom thumbnails receive more clicks than those using auto-generated frames from the video.