YouTube Thumbnail Checker
Drop your thumbnail image below and instantly see if it meets YouTube's requirements: 1280×720 px, under 2 MB, JPG or PNG. Runs entirely in your browser — nothing is sent to any server.
How to fix it
Need to resize this thumbnail to exactly 1280×720? FrameForge crops and exports any image to YouTube specs in seconds — all inside Chrome, nothing uploaded.
Try FrameForge — freeYouTube Thumbnail Requirements
| Requirement | Value |
|---|---|
| Recommended size | 1280 × 720 px |
| Minimum size | 640 × 360 px |
| Aspect ratio | 16:9 |
| Max file size | 2 MB |
| Accepted formats | JPG, PNG, GIF, BMP |
YouTube accepts thumbnails as small as 640×360, but they'll look blurry on high-DPI screens. Always target 1280×720 for sharp results on retina displays and large monitors.
The bottom-right corner of your thumbnail is covered by YouTube's timestamp label in search results, so keep faces, text, and important visuals away from that area.
Frequently asked questions
What's the required thumbnail size for YouTube?
YouTube recommends 1280×720 pixels (16:9 ratio), under 2 MB, in JPG, PNG, GIF, or BMP format. This tool checks your image against those requirements instantly.
What file formats does the checker accept?
It checks against YouTube's accepted formats: JPG, PNG, GIF, and BMP.
Does it check video length or other YouTube requirements?
No, this tool only checks thumbnail image dimensions, file size, and format — it doesn't touch video files or other channel settings.
Is my image uploaded to YouTube or any server?
No, the check happens entirely in your browser by reading the image file locally — nothing is uploaded anywhere, including to YouTube.