Make thumbnails and channel art at the exact sizes YouTube recommends (1280×720 thumbnails, 2560×1440 banners). Select a preset, decide whether to crop or pad, and download images that upload without being cropped or compressed unexpectedly.
Free, no sign-up
Files never leave your device
Batch processing
No watermark
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Your files are processed on this device and are never uploaded to a server.
How to use the YouTube Thumbnail Resizer
1
Drop your image.
2
Choose the preset you need, then pick Cover (crop to fill) or Fit (pad).
3
Resize and download.
Why exact sizes matter
Platforms resize anything that does not match their expected dimensions, which can crop faces or add heavy compression. Uploading at the recommended size and aspect ratio keeps your image sharp and framed the way you intended.
Frequently asked questions
Are my images uploaded to a server?
No. Images are decoded and processed by your browser on your own device. Nothing is uploaded, which also makes the tool fast for large batches.