Image Format Inspector
Decode PNG, JPEG, GIF, WebP, and BMP headers: dimensions, color depth, interlace, etc.
How to Use
- Drop an image.
- Header fields parse without decoding pixels.
What\'s decoded
About the Image Format Inspector
Whether you are at a desk or on your phone, the Image Format Inspector makes image, audio and file tasks easy — and it is completely free. Decode PNG, JPEG, GIF, WebP, and BMP headers: dimensions, color depth, interlace, etc.
How it works
Enter what you have and read the result as it updates live. It all runs on your own device, so it is quick and private, with nothing to install.
Want the deeper story? The Knowledge Base explains the ideas behind the tools in more detail.
Frequently Asked Questions
Why?
Check format internals before sharing — sniff for anomalies.
How do I use the Image Format Inspector?
Simply type your numbers and read the result, which refreshes the instant you change something. There is nothing to submit and nothing to wait for.
Is it free? Does it work without internet?
Yes to both. It is free with no sign-up, and once the page has loaded it keeps working even with no internet.
Where does my data go?
Nowhere — every calculation runs on your own device. Nothing you enter is uploaded, logged, or stored.
Common Use Cases
Forensics
Inspect suspect image.
Debug
Verify PNG depth / color type.
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