YouTube Thumbnail Viewer
View the public thumbnail for a YouTube video URL.
YouTube & creatorsYouTube & creators tools
YouTube Thumbnail Preview Tool
Preview your own thumbnail and title in a video listing.
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How to use youtube thumbnail preview tool
- Choose a JPEG, PNG, or WebP image within the displayed limits.
- Enter Your video title and Channel name.
- Choose Generate result and inspect the centered 1280 by 720 mockup.
Work through an example
Use a local 1280 by 720 listing mockup to inspect image fit, title wording, and channel context.
Review a thumbnail and title together before publishing →Formats, privacy, and practical limits
This tool processes the values you enter in your browser. No account or upload to ERITHRA is required.
Files and generated results exist only for this tab session. Download any result you want to keep before leaving the page. Browsers may use temporary memory or disk cache while processing.
Frequently asked questions
Will a square image be cropped to fill the preview?
No. The whole image is scaled proportionally to fit a 1280 by 720 canvas, with dark space around any unused area.
Can this publish or export my thumbnail?
No. The result is a local listing approximation for visual review, without a publishing connection or image export action.