What is the maximum file size for a YouTube thumbnail?

1280 × 720 px Standard

Resize Image for YouTube Thumbnail Online Free

Format pictures to YouTube's exact thumbnail requirements: 1280 × 720 pixels, 16:9 aspect ratio, and under 2MB file size. Ensure your video covers look sharp on mobile and desktop.

Official YouTube 1280 × 720 px thumbnail dimensionsStrict 16:9 widescreen aspect ratioKeeps file size strictly under YouTube's 2MB ceiling

Drop image here to resize for YouTube Thumbnails

Supports JPG, PNG, and WebP

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How to Use Resize Image for YouTube Thumbnail Online Free

Follow these simple steps to optimize your image in seconds.

Upload Thumbnail Image

Drop your video cover photo or artwork.

Automatic 1280x720

The tool automatically formats to 1280 × 720 (16:9).

Adjust Framing

Inspect the preview to ensure focal subject is prominent.

Save & Upload to YouTube

Download your YouTube-ready thumbnail instantly.

Key Features & Benefits

Official YouTube 1280 × 720 px thumbnail dimensions

Strict 16:9 widescreen aspect ratio

Keeps file size strictly under YouTube's 2MB ceiling

Crisp text readability and high contrast preservation

YouTube Thumbnail Guidelines for High Click-Through Rates (CTR)

YouTube specifies 1280 × 720 pixels with a minimum width of 640 pixels, 16:9 aspect ratio, and a maximum file size of 2MB (formats: JPG, GIF, or PNG).

Over 70% of YouTube views occur on mobile devices. Resizing your image with crisp contrast and clear focal points ensures text remains legible even in miniature search recommendation feeds.

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Your images and personal documents are processed strictly in your local web browser using client-side canvas technology. Your files are never uploaded to any remote server, stored in any database, or viewed by third parties.