PdfStuffAI

File Detector

Upload a file to identify its MIME type and extension.

Frequently Asked Questions

What does the file type detector do?

Our tool analyzes the binary signature (magic bytes) of any file to determine its true format, regardless of the file extension. This is useful when files have wrong or missing extensions.

Why would I need to detect a file type?

Sometimes files are shared without extensions, or with incorrect ones. This tool identifies the actual format so you can open the file with the right application.

What file types can it detect?

We can identify hundreds of file formats including documents (PDF, DOCX), images (JPG, PNG), videos (MP4, MKV), archives (ZIP, RAR), and many more.

Is file type detection free?

Yes, completely free. Upload any file and instantly learn its true format.