Image Format Detector
Detect the format and type of any image. See dimensions, size, and color depth.
Upload an image above to detect its true format, dimensions, and color depth.
A file renamed from .png to .jpg doesn't actually become a JPEG just because the extension changed, the real format lives in the file's own binary signature at the very start of its content, and software that trusts the extension rather than checking that signature is exactly how a mismatched file ends up throwing a confusing, unhelpful "can't open this file" error. This tool detects an image's actual format by reading its binary signature directly, along with its real dimensions, size, and color depth, rather than trusting whatever the file extension happens to claim.
See moreSee less about the Image Format Detector
Useful for figuring out a file's true format when its extension doesn't seem to match how it actually behaves, catching a mismatched extension before it causes an unexplained error somewhere else, or checking an image's actual color depth and dimensions without opening it in a full editor first.
Key features
- Clean interface
- Fast processing
- No signup required
- Works offline