Nearly instant
Width, height, size, and format appear as soon as the image loads.
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Image Dimensions & File Info
Upload an image to instantly check its width, height, aspect ratio, file size, format, and other technical details.
Upload an image to inspect
Drop anywhere, or choose an option below.
Files stay private while we process them, then they are deleted. Nothing is published unless you choose to share a result later.
Width, height, size, and format appear as soon as the image loads.
Missing DPI or profiles stay “not specified” — we never invent them.
Dimensions, file size, and DPI are separate concepts — labeled clearly.
Inspect locally in your session without a mandatory upload job.
How it works
Step 1
Upload a file, pick from disk, or try a sample.
Step 2
We read headers and decode only when needed.
Step 3
Copy values, download a report, or jump to Resize, Compress, and more.
Why this inspector
Width × height is the strongest signal on the page.
Simplified ratios like 16:9 when they truly match.
Format, transparency, DPI, print size, bit depth, and whether metadata is present.
Compress, resize, convert, crop, rotate, DPI, and metadata — when useful.
Checkerboard behind images that may contain alpha.
Switch images without losing your place.
Formats & limits
JPG, JPEG, PNG, WebP, AVIF, HEIC, TIFF, BMP, and GIF where your browser can decode them.
Dimensions, aspect ratio, megapixels, file size, format, orientation, DPI, transparency, and more.
Inspection runs in your browser session. Files are not published to a gallery.
Results appear instantly — copy values or open a related tool when you want to edit.
Up to 40 MB per image for free use.
Inspect several images in one session and switch between them.
Questions
Pixel width and height - for example 1920 × 1080 px. That is different from file size (KB/MB) and from DPI (print density).
No. File size is how many bytes the file uses. Dimensions are pixels. DPI is print metadata and may be missing entirely.
We simplify width and height to the smallest matching pair. 1920×1080 becomes 16:9. Uncommon sizes stay as exact simplified ratios.
Megapixels measure total pixels (width × height, in millions). A 4000×3000 photo is about 12 megapixels. That is not the same as file size.
Many web images have no embedded DPI. Software may assume 72 or 96 for display, but we only show DPI when it is actually in the file.
No. This tool inspects and reports. Use Resize, Compress, Convert, Crop, Rotate, DPI, or Metadata when you want changes.
Learn
Image dimensions are the pixel width and height (for example 1920 × 1080). File size is how many bytes the file occupies on disk. DPI is optional print-density metadata and is often missing from web images.
Megapixels measure pixel count: (width × height) ÷ 1,000,000. A large megapixel count does not always mean a large file — compression and format matter.
Aspect ratio is the simplified relationship between width and height. We show simplified ratios like 16:9 when they truly match.