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Image Info Inspector — Detect Format, Dimensions, Color Type & Bit Depth from the File Header
Inspect any image's true format, dimensions, megapixels, aspect ratio, color type, bit depth, alpha and animation — read straight from the file header (magic bytes), no decoding and nothing uploaded.
Inspect an image's true format, dimensions, megapixels, aspect ratio, color type, bit depth, alpha, and animation — read straight from the file header's magic bytes, without decoding the picture. Because it never decodes or uploads the image, it is fast and works even on files a viewer might mislabel. Everything stays on your device.
How It Works
Choose a tool
Pick from 120+ tools to resize, convert, compress, or enhance your image.
Upload & edit
Drag and drop your image and adjust the settings. It stays on your device.
Download
Save your result instantly — no watermark, no sign-up required.
Why Image Machine?
Your files never leave your device
All processing runs locally in your browser. Your images are never uploaded to a server.
Completely free
Every tool is free, with no limits, no watermarks, and no hidden costs.
Lightning fast
No upload waiting — your images are processed instantly on your own device.
Professional quality
Pixel-perfect output with full control over format, size, and quality.
Frequently Asked Questions
How can I check an image's real format without opening it?
The tool reads the file's magic bytes — the signature at the very start of the file — to identify the true format, so it reports what the file actually is even if the extension was renamed. No decoding is required.
What details does the inspector report?
It shows the format, pixel dimensions, megapixels, aspect ratio, color type, bit depth, whether an alpha channel is present, and whether the file is animated — all parsed from the header.
Does it upload or fully decode my image?
No. It only parses the header bytes, so the image is never decoded into pixels and never uploaded. That makes it fast and private even for very large files.
Why does the detected format differ from the file extension?
An extension is just a label and can be wrong or renamed. The magic bytes describe the actual encoding, so the inspector's detected format is the one your software will really treat the file as.