Extract ZIP Files Online

Extracting ZIP archives without installing anything

When you need this

ZIP is the universal archive format, but opening one is surprisingly often a problem: a work laptop without 7-Zip, a phone that won't preview the contents, a Chromebook, a shared computer where you cannot install software. This page unpacks any standard ZIP in the browser — no installation, no upload.

What it can (and cannot) open

If an archive is encrypted, the tool reports an error — encrypted entries cannot be decoded without the password, and this page does not ask for one.

How extraction works

The archive is parsed with fflate, a fast pure-JavaScript implementation of the ZIP format. Each entry is decompressed in memory and offered as an individual download. Nothing touches a server; the whole process is memory-only, and closing the tab clears it.

Very large archives (over ~1 GB) may exhaust browser memory on modest devices — extract those on a machine with more RAM, or ask the sender to split the archive.

ZIP vs other formats

ZIP favors compatibility over maximum compression: it is understood by every operating system out of the box. RAR and 7z usually compress smaller but need specific software. For sending files to other people, ZIP remains the safest choice — which is also why it is the format you most often receive.

A note on zip bombs and safety

Because extraction happens locally and you download each file yourself, you stay in control of what lands on your disk. Still treat unexpected archives with care: extracting a ZIP does not run anything, but opening an extracted .exe or macro-enabled document can.

Need to create a ZIP instead?

This tool goes one direction: archive in, files out. To bundle files into a new ZIP for sharing, use our ZIP Compressor — it runs the same local, no-upload approach in reverse. Both live in your browser; nothing is ever uploaded.