Result will appear here.
Resize a thumbnail to a common YouTube thumbnail size (1280 × 720) — with fit, crop focus, format, and background controls, entirely in your browser.
The width and height start at 1280 × 720 and can be changed to any size. YouTube Thumbnail Resizer always reports the final dimensions in the result panel.
Cover fills the frame and may crop (the crop focus chooses which part is kept); Contain shows the whole image with padding; Stretch ignores the aspect ratio.
Pick JPG, PNG, WebP, or same-as-input, set the quality, and optionally a target file size. JPG fills transparency with the background color.
YouTube Thumbnail Resizer is an independent browser tool and is not affiliated with YouTube or Google. Confirm the current YouTube requirements, since sizes vary by placement and device. Re-encoding removes metadata.
YouTube Thumbnail Resizer resizes a thumbnail to a common YouTube thumbnail size (1280 × 720), a size commonly used on YouTube. The dimensions are pre-filled and fully editable, so you can keep the common size or type your own, and the result panel always shows the final pixel dimensions.
Choose how the image fills the frame: Cover fills it and may crop the edges (use the crop-focus control to keep the important part, such as a face), Contain shows the whole image with padding, and Stretch ignores the aspect ratio. Output can be JPG (a common social default), PNG or WebP (which keep transparency when the background is set to Transparent), or the same format as the input (JPG, PNG, or WebP), and JPG fills transparent areas with your background color. A thumbnail is 16:9 at 1280×720 and is often seen very small, so keep text large and centered and check it still reads at a small size; a small-size preview is a planned enhancement.
This is an independent browser tool and is not affiliated with YouTube or Google — YouTube sizes change and can vary by placement and device, so verify the current requirements before uploading. Re-encoding strips EXIF and other metadata, and animated GIFs are exported as a single still frame.
YouTube Thumbnail Resizer starts at 1280 × 720 and shows the final dimensions, so you can keep the common size or set your own and verify before upload.
Cover fills the YouTube frame with a crop focus (center, top, bottom, left, or right) so a face or logo in your thumbnail is not lost; Contain keeps the whole image with padding.
Export your thumbnail as JPG, PNG, WebP, or the same format, set the quality, and optionally aim for a target file size, then verify the achieved result before uploading to YouTube.
Your thumbnail is processed in your browser with the HTML canvas and is never uploaded to a server.
Size a thumbnail to the common YouTube dimensions before you post it.
Use the crop focus or Contain mode so YouTube does not cut off the important part of your image.
Set a target file size to aim for a YouTube size limit, then check the achieved size before uploading.
Resize a thumbnail from a phone, tablet, or computer browser with the file staying on your device.
No. YouTube Thumbnail Resizer is an independent browser tool and is not affiliated with YouTube or Google. Sizes and rules can change, so always verify the current YouTube upload requirements before you post.
No. The resize happens in your browser using the HTML canvas, and your thumbnail is never sent to imgtoolsbase or any server.
Yes. YouTube Thumbnail Resizer pre-fills the width and height with 1280 × 720, but both are fully editable, so you can enter any custom size and the result panel shows the dimensions actually produced.
YouTube Thumbnail Resizer lets you use Contain to keep the whole thumbnail with padding, or keep Cover and set the crop focus (for example Top) so the important part of your thumbnail stays in frame.
Keep any text large and near the center, since thumbnails are often shown very small. Use the crop focus to protect faces, and a target file size to stay within upload limits. A small-size readability preview is planned.
Tools that pair well with YouTube Thumbnail Resizer.