File Inspector
See everything about a file: exact size, real type detected from its contents, MIME type, last-modified date, first bytes and SHA-256 checksum.
Free · No upload · 100% on your device
Choose files, or drop them here.
Any file type · Nothing is uploaded.
How to use File Inspector
- Choose files, or drop it on the page.
- Check the details.
- Select “Inspect”.
- Download the result. Your original file is left unchanged.
Private by design. Everything you type, open or record is processed in this browser tab and is never uploaded to KittySuite.
About File Inspector
The type is identified from the file’s first bytes (its “magic number”), not from its name, so a renamed or disguised file is caught. Several files can be inspected at once and are listed in a table.
Your files are read in this browser tab and never uploaded. Nothing is stored after you close the page, and there is no size limit beyond your device’s memory.
File Inspector: frequently asked questions
How do I see everything about a file?
Choose one or more files to see the exact size, the real type detected from the contents, the MIME type, the last-modified date, the first bytes and the SHA-256 checksum.
How is the real file type detected?
From the file’s first bytes (its “magic number”), not its name, so a renamed or disguised file is caught.
Can I inspect several files at once?
Yes. They are listed together in a table.
Is the file uploaded to be inspected?
No. It is read in this browser tab and never uploaded, with no size limit beyond your device’s memory.