Open 7z Files Online

Extract 7z archives without installing 7-Zip software. Works directly in your browser on any device - Mac, Windows, Chromebook, even mobile phones.

Why 7z?

7z offers the highest compression ratio of any common archive format - files can be 30-50% smaller than ZIP equivalents. It's popular for large downloads and software distribution. The catch? No operating system opens 7z natively. JustUnzip handles it instantly.

How to Open 7z Files Online

  1. 1
    Go to JustUnzip

    Click the button below or visit the homepage.

  2. 2
    Drop your 7z file

    Drag and drop your .7z file onto the drop zone, or click to browse.

  3. 3
    Download extracted files

    View the contents and download individual files or everything at once.

7z Format Support

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LZMA Compression

The default high-compression algorithm for 7z.

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LZMA2

Improved multithreaded compression support.

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Solid Archives

Archives with enhanced compression across multiple files.

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AES Encryption

Password-protected 7z may have limited support.

Related Pages

All Formats Open ZIP Online Open RAR Online No Software Needed

Ready to open your 7z file?

Go to the Archive Extractor →