How do I check image dimensions online for free?

Upload your image and instantly see: width x height in pixels, aspect ratio, file size, format, color depth, and megapixel count. Compare against social media and print size presets. No signup required.

What is aspect ratio and why does it matter?

Aspect ratio is the proportional relationship between width and height (e.g., 16:9, 4:3, 1:1). It matters for: social media requirements, print sizing, video formats, and ensuring images display correctly without cropping.

How do I check if my image meets Instagram/YouTube size requirements?

Upload your image and compare against our preset list. We show if your image matches Instagram (1080x1080, 1080x1350), YouTube (1280x720, 2560x1440), Facebook, Twitter, and other platform requirements.

What does megapixels mean for image quality?

Megapixels = millions of pixels (width × height ÷ 1,000,000). Higher megapixels mean more detail and larger print capability. 12MP is good for web, 24MP+ for large prints. We calculate this automatically.

Is the image dimensions checker private? Are my images uploaded?

Yes, 100% private! All analysis happens locally in your browser. Your images never leave your device or get uploaded to any server. Safe for personal and confidential images.

How do I check image dimensions online for free?

Upload your image and instantly see: width x height in pixels, aspect ratio, file size, format, color depth, and megapixel count. Compare against social media and print size presets. No signup required.

What is aspect ratio and why does it matter?

Aspect ratio is the proportional relationship between width and height (e.g., 16:9, 4:3, 1:1). It matters for: social media requirements, print sizing, video formats, and ensuring images display correctly without cropping.

How do I check if my image meets Instagram/YouTube size requirements?

Upload your image and compare against our preset list. We show if your image matches Instagram (1080x1080, 1080x1350), YouTube (1280x720, 2560x1440), Facebook, Twitter, and other platform requirements.

What does megapixels mean for image quality?

Megapixels = millions of pixels (width × height ÷ 1,000,000). Higher megapixels mean more detail and larger print capability. 12MP is good for web, 24MP+ for large prints. We calculate this automatically.

Is the image dimensions checker private? Are my images uploaded?

Yes, 100% private! All analysis happens locally in your browser. Your images never leave your device or get uploaded to any server. Safe for personal and confidential images.

Image Dimensions Checker

simple

Check image dimensions, aspect ratio, file size, format, and resolution instantly. Verify images meet size requirements for social media, print, or web with preset comparisons.

Image Toolsimagedimensionssizeaspect ratio

100% Private - Runs Locally

How to Use

1Upload an image
2View dimensions and aspect ratio
3Check against common presets
4See file size and format

Examples

Social Media Check

Input

Photo for Instagram post

Output

1080×1080 (1:1 Square) - Perfect for Instagram!

Print Resolution

Input

4000×3000 photo

Output

12 megapixels, 4:3 aspect ratio, Landscape

Video Thumbnail

Input

YouTube thumbnail image

Output

1280×720 (16:9) - Matches YouTube Thumbnail preset

Frequently Asked Questions

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