Resolution notes
The checker reads pixel dimensions and calculates megapixels, simplified ratio and practical fit ranges.
It helps separate a pixel-count problem from file-size or format problems before you resize or compress.
Image Resolution Checker
Inspect pixel dimensions and megapixels, then compare the image with common web, social and print use cases before resizing or printing.
Pixel dimensionsMegapixelsUse-case checksBrowser-only reading
Resolution checker
Image preview
Choose an image to see checks.
Choose an image to see checks.
How it works
- 1Choose an image.
- 2Review its dimensions, simplified aspect ratio, megapixels and orientation.
- 3Check whether it is enough for common thumbnails, social previews, HD layouts and print sizes.
Privacy and limits
- The file is read locally and is not uploaded.
- Resolution does not measure blur, focus, compression artifacts or subject placement.
- Print guidance uses pixel math; printers and paper choices can change the final result.
Common use cases
- Checking if an image is large enough for a hero area
- Comparing a photo with social preview needs
- Estimating whether a file has enough pixels for common print sizes
Pixel notes
- Megapixels are width x height divided by one million.
- Use fit checks as guidance, not a quality guarantee.
- Blur, focus and compression artifacts need a visual review.
Original test sample
- Upload 1920 x 1080 and confirm it passes HD layout guidance.
- Upload a 600 x 400 image and confirm larger print uses are flagged as weak.
Frequently asked questions
Are my images uploaded?
No. ImgShrink processes selected images in your browser and does not upload them to a server.
Can this tool guarantee an exact file size?
No. Target compression gets close when possible, but the final bytes depend on image detail, dimensions, format and browser encoding.
Why is an output format unavailable or different?
The browser controls image decoding and export support. Some browsers may not export AVIF or may flatten unsupported transparency.
Source and compatibility notes
This tool works in the browser, so output support depends on what your browser can read and export.
Last checked: 2026-09-07
Notes
- No server-side image processing is used.
- Output format support depends on the browser.
- Animated images and metadata are not treated as guaranteed preserved data.
Related resolution tools
All toolsResize images by width and height in your browser. Create smaller JPG, PNG or WebP files without uploading.
Calculate how large an image can print from pixel dimensions and DPI. See inches, centimeters and print quality notes.
Calculate print size from image pixels and DPI in your browser. Convert pixels to inches and centimeters with no upload.
Check an image aspect ratio, simplify width and height, calculate megapixels and resize proportionally in your browser. No upload required.