Image Format Inspector
Read dimensions, format, aspect ratio and file weight.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Inspects an image without uploading it: file type, byte size, pixel dimensions, megapixels, aspect ratio and whether the format supports transparency. Useful for quickly checking what a client actually sent you.
How to use it
- Drop an image onto the panel.
- Read the format, dimensions and size details.
- Use the aspect ratio when choosing a replacement size.
Frequently asked questions
How is the format detected?
The browser reads the file signature and the decoded image type, so a mislabelled extension is reported honestly.
Can it detect compression quality?
No. JPEG quality is not stored in the file in a reliable way; only the encoder settings would reveal it.
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