YouTube Thumbnail Resizer
Resize and crop any image to the exact YouTube thumbnail size of 1280×720 px. Free online tool with quality control and a 2MB limit check.
About the YouTube Thumbnail Resizer
YouTube thumbnails must be 1280 × 720 pixels (16:9) and under 2 MB — upload anything else and YouTube will crop or reject it. This free thumbnail resizer takes any photo or design, cover-crops it to exactly 1280 × 720, and lets you slide the crop position so the important part of your image stays in frame.
A quality slider keeps the JPG under YouTube's 2 MB limit, and the tool warns you if the exported file is too large. You can also export lossless PNG if your thumbnail contains sharp text and flat colors.
The whole process runs in your browser — your image is never uploaded, there is no watermark, and there is no signup. Resize, preview the exact 16:9 frame, and download a thumbnail that is ready to upload to YouTube Studio.
How to Use the YouTube Thumbnail Resizer
- 1Upload the image you want to use as a thumbnail.
- 2Drag the crop-position slider so the subject sits nicely in the 16:9 frame.
- 3Pick JPG or PNG and adjust the quality slider if needed.
- 4Click "Create 1280 × 720 Thumbnail" and download the file.
Frequently Asked Questions
What size is a YouTube thumbnail?
The official YouTube thumbnail size is 1280 × 720 pixels with a 16:9 aspect ratio. YouTube requires a minimum width of 640 px and a maximum file size of 2 MB, in JPG, PNG, GIF or BMP format.
Why does YouTube reject my thumbnail?
The two most common reasons are a file over the 2 MB limit or an image that isn't 16:9. This tool fixes both: it outputs exactly 1280 × 720 and warns you if the file exceeds 2 MB so you can lower the quality slider.
Should I use JPG or PNG for YouTube thumbnails?
JPG is best for photos because it compresses far smaller, easily staying under 2 MB. PNG is better when your thumbnail is mostly text, logos or flat colors, since it keeps edges perfectly sharp — just watch the file size.
How do I keep my thumbnail under 2 MB?
Export as JPG and lower the quality slider — 80–90% is visually indistinguishable for most photos. The tool shows the exact output size after generating, so you can adjust until it's under the limit.
Will my image be stretched to fit 1280 × 720?
No. The tool uses a cover crop, which scales the image proportionally and trims the overflow instead of distorting it. Use the position slider to choose which part gets kept.