Identify image file types by checking file signatures (magic bytes) rather than relying on file extensions
Drag & Drop or Browse to upload your image file
The “Image Format Detector” available on the Picturando website is a lightweight online utility that identifies the true file format of an image by inspecting its internal file signature (magic-bytes), rather than relying solely on the file extension. This helps you confirm what an image actually is (for example JPG, PNG, WebP, etc.), which can be useful when files have wrong or misleading extensions.
You upload (or drag-and-drop) an image file into the tool. The tool reads the first bytes of the file (i.e. its “magic bytes” or file signature) and analyses them. It then displays detailed results including the **detected format**, **MIME type**, **whether the extension matches the detected format**, and a **confidence** indicator. It also shows the first bytes in hexadecimal (or a “hex viewer”) for more technical verification.
This tool is particularly useful when you’re handling images from unfamiliar sources — for example downloaded from the web, received via email or chat, or obtained from users — and you want to ensure the file is really in the format it claims to be. It helps avoid issues related to misnamed files, ensure compatibility, and verify authenticity before editing, converting, or using images in projects.
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