How to Open a Zip File

Browse vs. extract: which one do you need?

If you only want to peek inside — check the file list, read a document, or preview an image — you can browse the archive without extracting anything. Nothing gets written to disk until you choose to. This is useful when the zip is large, when you only need one file out of many, or when you are on a machine where you do not want to leave files behind.

If you actually want to work with the files (install a program, edit them, share them), you want to extract. Extraction unpacks the archive and writes the original files into a folder on your computer. For a focused guide on that, see how to extract a zip file, and for the browse-without-extracting angle see viewing the contents of a zip without extracting it.

Open a zip with Windows built-in support

Windows has native zip support, so for most archives you do not need any extra software.

To browse the contents, double-click the .zip file. Windows opens it in File Explorer as if it were a folder, and you can see the files inside. You can even open individual files directly from there, though Windows has to decompress each one on the fly to show it.

To extract everything, right-click the .zip and choose Extract All. On Windows 11, if you do not see it in the first menu, click Show more options (or press Shift+F10) to reveal the full classic menu. Pick a destination and click Extract; Windows writes the files into a new folder. To pull out just one file while browsing, drag it out of the zip window into another folder.

• Double-click to browse the archive like a folder
• Right-click → Extract All to write the files to disk (Show more options on Windows 11)
• Drag a single file out to extract only that one

Open a zip on macOS with Archive Utility

macOS ships with Archive Utility, which handles zips automatically — but its behavior is different from Windows.

On a Mac, double-clicking a .zip file extracts it on the spot: Archive Utility creates a new folder next to the zip containing the unpacked files. This is the default, so be aware that double-clicking on macOS is an extract action, not a browse action — there is no native Finder way to browse a zip first.

To browse without extracting, the quickest native trick is Quick Look: select the zip and press the Spacebar to peek at its name and size (though it will not list the files inside). To actually browse the file tree, use a third-party tool like The Unarchiver or BetterZip, or open the zip right in your browser with ZipTool (covered below), which lets you inspect the contents and preview files without writing anything to disk.

• Double-click to extract via Archive Utility (writes files to disk)
• Select the zip and press Spacebar for a Quick Look peek
• Use The Unarchiver, BetterZip, or an in-browser viewer to browse without extracting

Open a zip on Linux

Most desktop Linux file managers (Nautilus, Dolphin, Thunar) can open zips directly — double-clicking usually opens the archive in an archive manager where you can browse and extract individual files.

If double-click does nothing, you likely need the unzip utility installed. On Debian or Ubuntu run sudo apt install unzip; on Fedora run sudo dnf install unzip. Then you can either use the GUI tool or the command line (covered next).

Open a zip in the browser (no install, no upload)

If you only want to look inside a zip — and especially if you do not want to install anything or you are on a locked-down machine — you can open it directly in a web browser. ZipTool is a client-side zip viewer: it parses the archive entirely in your browser using zip.js, and your file contents never get uploaded to any server.

This is a viewer, not an extractor. It is for browsing and previewing, not for writing files to disk, and it cannot decrypt password-protected archives. But it is fast, requires no installation, and works on any modern browser. One privacy note: keeping processing in the browser is a privacy improvement because the contents never leave your device, but it is not a security guarantee — a malicious archive is still malicious, and you should only open zips from sources you trust. See security and privacy for details.

• Go to ziptool.app
• Drag your .zip file onto the page, or paste a URL to an online zip
• Browse the file tree on the left, or use search to find a file by name
• Click any file to preview it — code with syntax highlighting, images, audio, video, PDFs, and nested zips
• Nothing is uploaded; the archive is read locally in your browser

Open a zip from the command line

If you live in the terminal, the unzip command is the standard tool on Linux and macOS, and is available on Windows through WSL, Git Bash, or a package manager.

To list the contents without extracting, use unzip -l archive.zip. This prints the file names, sizes, and dates — a quick way to see what is inside before committing to an extraction.

To extract everything, run unzip archive.zip from the folder where you want the files to land. Add -d path/to/folder to send them to a specific directory. To extract a single file, name it exactly as it appears in the listing, for example unzip archive.zip path/inside/file.txt.

• unzip -l archive.zip — list contents without extracting
• unzip archive.zip — extract all files into the current directory
• unzip archive.zip -d target/ — extract into a specific folder
• unzip archive.zip some/file.txt — extract a single file

Common errors when opening a zip

A few errors come up over and over. Here is what each one actually means.

"End of central directory record not found" or "Cannot open file as archive": the file is either not really a zip, or it was truncated — most often an interrupted or incomplete download. Re-download the file. If you can, check the size against the source to confirm it finished. A .zip is only valid if both its central directory and the final record are intact.

CRC (cyclic redundancy check) errors during extraction: the archive's data does not match its checksum, meaning part of it is corrupted. This usually points to a bad download or a damaged file on disk. Re-downloading typically fixes it; if the source itself is corrupt, the affected files cannot be recovered.

"Needs a password", "encrypted", or a password prompt: the archive is encrypted, so it cannot be opened without the password. You will need the password from whoever created it. Note that a browser-based viewer like ZipTool cannot decrypt password-protected archives either — for more on that, including how encrypted zips are made, see how to password-protect a zip file.

• "End of central directory record not found" — not a valid zip, or an incomplete download; re-download
• CRC errors — corruption; re-download, and if the source is bad the files are unrecoverable
• "Needs a password" — the archive is encrypted; you need the password to open it

Frequently asked questions