Developer tool · 100% free

File Metadata Inspector

Inspect file name, extension, MIME guess, size, timestamps where available and format-specific details for common media.

Built for: file metadata

Deleted as soon as you download itFree · fair-use only

Drop file files hereJSON output · up to 100 files

Included in this tool

Filename/sizeMIME detectionExtension detailsFormat-specific metadata

What this tool includes

Everything you need, without a paywall.

Filename/size

MIME detection

Extension details

Format-specific metadata

This tool is free, needs no account, and adds no watermark to your result. Text operations run on your device where the browser can do the work safely; file conversions run on the server and your upload is deleted as soon as your download finishes.