Can it open password-protected archives?

No. Encrypted zip entries need the password applied during decompression, which this tool does not implement. Use a desktop archiver for those.

What about .rar, .7z or .tar.gz files?

None of them are zip files, despite doing the same job, and none can be opened here. Each uses a different container and compression scheme.

Why do my extracted files have underscores in their names?

Because the archive stored them in folders and a browser download cannot create a folder. The path separators become underscores so the structure is still legible. Switch on flattening if you would rather have the bare filenames.

Are the contents uploaded anywhere?

No. The archive is decompressed inside this tab and the entries become downloads directly from it. Nothing is sent, which is what makes this safe for an archive you would not hand to a third party.

Unzip a File

Open a zip and pull out what you need, one file or all of them.

Everything runs inside your browser. Your files never leave your device.

Drop your files here

.zip · they stay on this device

Ask about Unzip a File

Questions about what this tool does, which option to pick, or what it can and cannot handle.

The question you type here is sent to an AI provider to be answered — your files and whatever you put in the tool above are not, and the assistant cannot see them. Answers are generated and can be wrong. The tool itself is not guessing: it runs deterministic code on your device.

About the Unzip a File

Opening an archive to retrieve one file from it is a small task that becomes irritating on the wrong device. A phone may have no extractor at all, a work laptop may block installing one, and a shared machine is exactly where you do not want to leave an extracted folder behind.

This unzips the archive in your browser and lets you take what you need. Every entry is listed, and each can be downloaded individually.

The filter is what makes it worth using on a large archive. Enter a pattern such as *.csv, or a comma-separated list of several, and only the matching entries are extracted. Pulling three spreadsheets out of a five-hundred-file export is then one operation rather than an extraction followed by a hunt.

Hidden files and the __MACOSX directory are skipped by default. That directory is metadata the macOS archiver adds and no other system wants; it is the reason a zip made on a Mac and opened on Windows appears full of files beginning with an underscore.

One practical limit comes from the browser rather than the tool. A download cannot create directories, so an entry at a nested path is renamed with underscores in place of the separators — "docs/report.pdf" arrives as "docs_report.pdf". The alternative is to flatten the names entirely, which is available as an option but will collide when two folders contain a file of the same name.

Encrypted archives cannot be opened here, and neither can .rar, .7z or .tar.gz, which are different formats that happen to serve the same purpose.

How to use it

1Drop in the zip archive. Several at once is fine.
2Add a filter such as *.csv if you only want particular entries out of a large archive.
3Leave the hidden-file option on to skip __MACOSX and dot-files that no other system wants.
4Download the entries you need. Folder separators become underscores, since a browser download cannot create directories.

Questions

Can it open password-protected archives?: No. Encrypted zip entries need the password applied during decompression, which this tool does not implement. Use a desktop archiver for those.
What about .rar, .7z or .tar.gz files?: None of them are zip files, despite doing the same job, and none can be opened here. Each uses a different container and compression scheme.
Why do my extracted files have underscores in their names?: Because the archive stored them in folders and a browser download cannot create a folder. The path separators become underscores so the structure is still legible. Switch on flattening if you would rather have the bare filenames.
Are the contents uploaded anywhere?: No. The archive is decompressed inside this tab and the entries become downloads directly from it. Nothing is sent, which is what makes this safe for an archive you would not hand to a third party.