Unzip files online and create ZIPs
Unzip files right in your browser: drop in the archive, see what is inside, save single files or extract everything into a folder – including password-protected ZIPs and TAR, GZ and TAR.GZ. The other way round, you can pack files and folders into a ZIP. Nothing is uploaded.
Source: PKWARE APPNOTE.TXT – .ZIP File Format Specification 6.3.10 (ZIP64, ZipCrypto 6.1). Updated: .
How it is calculated
Email attachments, downloads from agencies, photos from the cloud: many files arrive as a ZIP. This tool opens the archive right in your browser – also on Chromebooks, iPads and work computers where you cannot install software – and lists every file with its size and date.
How it works
- Drop in a ZIP file. The contents appear as a list; for many files, use the filter.
- Save single files with “Download” – or use “Extract all into a folder” to write every file including subfolders to disk (Chrome and Edge on desktop; the browser asks for the target folder).
- Password-protected ZIPs: enter the password, then extract.
- To pack, choose “Create ZIP”, add files or a whole folder and click “Create ZIP”.
Which archives work?
ZIP with the “stored” and “Deflate” methods – used by Windows, macOS, Android and nearly all programs – including very large ZIP64 archives. File names with accents are read correctly, even from older Windows ZIPs (code page 437). Plus TAR, GZ and TAR.GZ/TGZ. Every file is checked against its CRC-32 checksum while unpacking, so you never save a damaged file. By the way, DOCX, XLSX, EPUB and APK files are ZIP archives too and can be opened this way.
Password protection
Classic ZIP encryption (ZipCrypto), the default in many programs and readable by Windows Explorer, is supported. The password stays in your browser. Archives with AES encryption (the “AES-256” option in 7-Zip and WinRAR) as well as RAR and 7z cannot be opened by the browser – use 7-Zip or your operating system for those.
Honest limits
Everything happens in memory: archives up to about 2 GB work on a computer, on a phone rather a few hundred MB. Split archives (.z01, .zip.001) are not supported. A ZIP containing only JPGs or PDFs barely shrinks – use Compress image and Compress PDF for that.
Frequently asked questions
What happens with a ZIP from an unknown source?
The tool only reads the table of contents and runs nothing. Paths such as “../” or absolute paths are neutralised, so nothing lands outside the folder you chose. If an archive grows unusually large when unpacked (a zip bomb), the tool asks first, and no entry is unpacked beyond the size it declares. The preview shows images and text without saving them. Extracted programs or documents can still be harmful – only open what you expect.
How do I unzip a file online?
Drop the ZIP file in here – the contents appear instantly. Then download single files or extract everything into a folder. Nothing is uploaded.
How do I unzip files on iPhone or Android?
The same way in your browser: pick the ZIP from Files or Downloads and download the files you need. On iPhone, the Files app can also unzip by tapping the archive.
Can I unzip a password-protected ZIP file?
Yes, if you know the password and the classic ZIP encryption (ZipCrypto) was used. AES-encrypted ZIPs open with 7-Zip.
How do I create a ZIP file?
Choose “Create ZIP” at the top, drop in files or add a folder, give it a name and click “Create ZIP”.
Can I extract RAR or 7z files?
No, the browser cannot unpack those formats. The tool recognises them and tells you; use 7-Zip, or Windows 11, which opens RAR and 7z natively.
Are my files uploaded?
No. Unpacking and packing run entirely in your browser.
Sources and legal basis
- PKWARE APPNOTE.TXT – .ZIP File Format Specification 6.3.10 (ZIP64, ZipCrypto 6.1)
- IETF RFC 1951 – DEFLATE Compressed Data Format
- IETF RFC 1952 – GZIP file format
- GNU tar manual – Basic Tar Format (ustar)
- WHATWG Compression Streams (CompressionStream / DecompressionStream)
- MDN – File System API: showDirectoryPicker()
As of: · Editorial policy
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