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Open a ZIP file

See what is inside an archive and take out the files you actually want. The ZIP is opened on your own device and never uploaded, so it works for things you would not send to a website.

  • Processed on your device
  • No upload, no waiting
  • No signup, no watermark

How it works

1

Add your ZIP

Drop it in, or pick it from your device. Nothing is sent anywhere — the file is read where it already is.

2

Look inside

Every file is listed with its size and its folder, before anything is unpacked. A large archive lists instantly because a ZIP carries a catalogue that can be read on its own.

3

Take what you want

Download one file, a folder, or everything at once. Only what you ask for is actually unpacked.

Frequently asked questions

Is my ZIP uploaded?

No. The archive is opened on your own device, by code that runs inside this page. Nothing is uploaded, nothing is stored, and it works with the Wi-Fi switched off once the page has loaded. That matters more for archives than for most files — a zip of your tax returns or a backup of a folder is exactly the kind of thing that should not be handed to a stranger's server.

Which formats can it open?

ZIP, TAR, TAR.GZ and TGZ, GZ, RAR (both RAR4 and RAR5) and 7z. The file is identified by what is inside it rather than by its extension, so an archive someone renamed still opens.

Can it open a password-protected ZIP?

It will show you what is inside — the file names and sizes are not encrypted in a ZIP, which is worth knowing in itself — but it cannot read the contents. ZIP encryption comes in two kinds and the modern one (AES) has no browser-native implementation we can use under a permissive licence. The page tells you plainly which files are locked rather than handing back scrambled bytes.

Is there a size limit?

Your device's memory, rather than a server's upload cap. Very large archives are opened a file at a time where the format allows it, so a big ZIP lists instantly and only the file you ask for is unpacked.

Is it safe to open an archive from someone I do not know?

Archives are the one kind of file whose CONTENTS can be hostile, so two old attacks are handled before you see anything. A file inside an archive can be named "../../something" to try to escape the folder it is unpacked into — those names are clamped and you are told which ones were changed. And an archive can be a few kilobytes that unpacks to terabytes, which would take the browser tab down with it; that is measured and refused rather than attempted.

Why are some file names different from what the archive says?

Because a name inside an archive is not always a name a computer can safely use. Anything trying to climb out of its folder with "../", an absolute path, a Windows drive letter, a reserved device name like CON, or an invisible character used to disguise an extension is corrected — and every correction is listed, so you can see exactly what was changed and why.

It says my file is not a ZIP, but it ends in .zip

Then it is almost certainly not a ZIP. Files get renamed to slip past mail filters, and a RAR or a 7z called ".zip" is common. The page reads the first few bytes and tells you what the file really is — and if it is a format we can open, it just opens it.