📁 File Helpers
View file details, preview ZIP contents, and explore CSV files — without uploading anything.
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File Info Viewer
Size, type, last modified
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ZIP Inspector
View ZIP file contents
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CSV Preview
First 15 rows preview

Check a file before you open or share it

Three quick inspectors in one place: see a file's basic properties, look inside a ZIP archive without extracting it, and preview the first rows of a CSV — all processed directly in your browser with nothing uploaded.

File Info Viewer

Select one or more files to see their type, exact size and last-modified date — handy for quickly checking several files at once before deciding what to do with them.

ZIP Inspector

See exactly what's inside a ZIP file — file count, estimated uncompressed size, and a full file listing — without extracting it to your device first.

CSV Preview

Get a quick table view of a CSV's first rows and column headers, useful for confirming a file's structure before importing it somewhere else.

Does the ZIP inspector extract the files?
No — it reads the archive's internal listing and metadata to show you what's inside, without writing any extracted files to your device.
What if my CSV uses semicolons instead of commas?
This preview expects comma-separated values. Files using a different delimiter may not display columns correctly in the preview table.
Can I check multiple files at once with File Info Viewer?
Yes — select several files together and each one's type, size, and last-modified date is listed, so you can review a whole batch in one screen.
Is any part of my file uploaded when I inspect it here?
No — all three inspectors read your file directly in the browser using standard file APIs. Nothing is sent to a server at any point.