MIME Type Detector
Identify a file's real type from its content signature rather than trusting the extension. A file named report.pdf can be anything at all, and the extension is the least reliable thing about it. It is free, needs no account, and adds no watermark to your result.
- Input
- common files
- Result
- JSON
- Capacity
- Up to 100 files / 250 MB total
- Privacy
- Temporary workspace removed after processing
1. Add your input. 2. Choose settings. 3. Check the result and download it. Your original file is not changed on your device. Privacy details
Saved settings — free
Reuse your preferred MIME Type Detector setup. Recipes stay in this browser and never include files or entered text.
No settings saved for this tool yet.
Run up to 100 compatible files (250 MB total), receive a ZIP when multiple results need packaging, and choose the download name.
The leading bytes are matched against known format signatures, and where the format is parsable the structure is inspected to confirm, then compared against what the extension claims.
Inspect file name, extension, MIME guess, size, timestamps where available and format-specific details for common media.
Calculate SHA-256, SHA-512 and MD5 checksums for uploaded files without changing their contents.
Inspect filenames, compressed sizes, original sizes, compression ratios and directory entries without extracting the archive.
Inspect image dimensions, format, EXIF fields, camera data, orientation, DPI and embedded metadata as JSON.