YouTube Thumbnail Size Checker
& Maker
Resize images to YouTube's perfect 1280x720 size, add eye-catching text, and download in seconds. Free, no signup required.
Drop your image here
or click to browse
How it works
Upload
Drop or select your image. JPG, PNG, WebP supported.
Adjust
Drag, zoom, rotate and flip to get the perfect crop.
Download
Get your optimized thumbnail in PNG or JPG format.
Frequently Asked Questions
What is the recommended YouTube thumbnail size?
YouTube recommends 1280x720 pixels (16:9 aspect ratio), with a minimum width of 640 pixels. The maximum file size is 2MB for uploads.
Is this tool free?
Yes, completely free. No signup, no watermarks, no hidden fees. All image processing happens in your browser - we never see your files.
Are my images uploaded to a server?
No. All processing happens locally in your browser using the Canvas API. Your images never leave your device. This means faster processing and complete privacy.
What file formats are supported?
You can upload JPG, PNG, and WebP images. The output is always PNG to preserve quality and transparency.
Why don't you have a text editor?
We focus on what we do best: perfect image resizing and positioning. For adding text, design your thumbnail in Canva, Photoshop, or your favorite editor, then upload it here for the perfect YouTube size.
Why YouTube thumbnail size matters
Your YouTube thumbnail is the first thing viewers see when browsing. A well-designed thumbnail can dramatically increase your click-through rate (CTR), which directly impacts how YouTube promotes your video.
YouTube officially recommends a thumbnail size of 1280x720 pixels(a 16:9 aspect ratio). This size ensures your thumbnail looks sharp on all devices - from mobile phones to desktop TVs. Thumbnails smaller than 640px wide will be rejected by YouTube.
Tips for high-CTR YouTube thumbnails
- Use 1280x720 resolution (16:9 aspect ratio)
- Keep important content centered - YouTube may crop slightly on mobile
- High contrast colors that pop against YouTube' + [char]39 + 's white background
- Avoid cluttered designs - keep it simple
- Test different versions to see what gets clicked