Unzip a File

Open a ZIP archive and pull out the files, all in the browser.

About this tool

Open a ZIP and you get a list of everything inside, with each file's size and whether it was compressed or stored. Preview text files without extracting them, download individual files, or pull out everything at once.

The archive is read entirely in your browser. That is the point: uploading an unknown ZIP to a website in order to find out what is in it is exactly backwards, and this way the contents never leave your machine.

A note on unexpected attachments

Being able to inspect a ZIP without extracting it is genuinely useful when one arrives unannounced. Look at the file names and extensions before you open anything.

Executables โ€” .exe, .scr, .bat, .js, .vbs โ€” inside an archive from someone you were not expecting are a long-running malware pattern, precisely because archiving hides them from some scanners. So are documents with a double extension like invoice.pdf.exe. Seeing the contents listed here costs nothing and does not run anything.

Frequently asked questions

How do I open a ZIP file without software?

Drop it here and the contents are listed immediately. Download individual files or everything at once โ€” the archive is read in your browser.

Are my files uploaded?

No, and that is rather the point โ€” inspecting an unknown archive by uploading it somewhere defeats the purpose. Everything happens on your device.

Can it open password-protected ZIP files?

No. Encrypted archives are not supported, nor are split multi-part archives or the rarer compression methods. Standard ZIPs open normally.

Can I see what's inside before extracting?

Yes โ€” every file is listed with its size, and text files can be previewed in place without downloading anything.