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Supports: 7Z
7Z is the archive format from 7-Zip, offering the highest compression ratios of any common archive format using LZMA2 compression. 7Z files are popular for distributing large software, game mods, and datasets where file size matters. However, 7Z requires 7-Zip or compatible software to open — it's not natively supported by Windows Explorer or macOS Finder.
Extracting 7Z files online lets you access the contents without installing 7-Zip — useful on work computers, Chromebooks, or mobile devices where you can't install software.
| Format | Compression | Native OS Support | Encryption |
|---|---|---|---|
| 7Z | Best (LZMA2) | None (needs 7-Zip) | AES-256 |
| ZIP | Good (DEFLATE) | Windows, macOS | AES-256, ZipCrypto |
| RAR | Very good | None (needs WinRAR) | AES-256 |
| TAR.XZ | Best (LZMA2) | Linux only | None |
7Z is the native archive format of 7-Zip. It uses LZMA2 compression for the highest compression ratios, supports AES-256 encryption, and can archive files of any type.
7Z typically produces 30–70% smaller archives than ZIP. However, ZIP has universal OS support while 7Z requires 7-Zip or compatible software.
Support depends on the encryption method. Upload the file and follow any prompts for password entry.
Yes. Browse the extracted contents and download only the files you need.
No. This tool extracts 7Z archives in your browser — no software installation needed.