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File Information Reader

List selected file names, MIME types, byte sizes and browser-provided modification times. Processing takes place locally in your browser.

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File Information Reader

Displays browser-provided metadata for selected files or a selected folder. Each output line has tab-separated fields in this order: filename, extension, formatted size, last-modified date/time, MIME type and relative path (or filename when no relative path is provided). There is no content scan or absolute disk path access.

Example: report.csv with 1536 bytes, MIME text/csv and relative path reports/report.csv shows extension csv and size 1.50 KiB in a decimal-point locale, or 1,50 KiB using the German number formatter. KiB means 1024 bytes and MiB means 1048576 bytes; values at these units are rounded to two decimals, while smaller sizes show bytes.

Modified dates use the project's selected-language date formatter with short date and medium time styles. The runtime uses the device time zone unless configured otherwise; this is modification time, not creation time. Locale affects presentation, not the original timestamp. The tool does not provide a timezone picker or forensic time verification.

Extension is the final period-separated filename segment, not validated file format. MIME is supplied by the browser and may be absent, in which case an unknown-type label is shown. Renaming a file can change its extension without changing its actual bytes; this tool does not verify authenticity, extract EXIF, read author tags or calculate checksums.

Up to 2000 selected files are accepted; metadata inspection does not read whole file contents, so the 64 MiB content-reading limit of other tools does not apply. Empty selection yields empty output. Selection order is preserved without sorting or filtering. Clear removes the selected list and resets results.

Processing is local and no selected file contents are uploaded. Folder picking and relative-path metadata depend on browser support; on mobile use individual file selection if folders are unavailable. Output is tab/newline-delimited text, not a quoted CSV export, so filenames containing tabs/newlines can make it ambiguous for automated parsing.

Processing takes place locally in your browser.