7Z Extractor
Extract 7Z archives with high LZMA compression in your browser. Password-protected archives supported — no uploads, no installs.
Privacy-first
Files never leave your device
Lightning fast
Extract instantly
High compression
Supports LZMA, LZMA2
Up to 2 GB
Browser limit for individual archives
Drop your 7Z archive here
We extract everything directly in your browser. For multipart archives, select all parts.
About 7Z Extractor
7Z is the native format of 7-Zip and typically achieves 30–70% better compression than ZIP on the same source files, thanks to its use of the LZMA and LZMA2 compression algorithms. It is widely used for software distribution and large dataset transfers because smaller archives mean faster downloads.
This extractor opens standard .7z archives in the browser, including split archives (the .001, .002, … naming scheme) and AES-256 encrypted archives. You can browse the contents, preview files, and pick exactly what to extract rather than dumping everything to disk.
Because extraction runs on your device with WebAssembly, neither the archive nor any password is uploaded. The tool works offline after the first page load, which makes it safe for extracting confidential software builds or sensitive datasets.
7Z Extractor — Frequently Asked Questions
What is a 7Z file?
7Z is a compressed archive format that provides high compression ratios using LZMA and LZMA2 compression methods. It's commonly used for large files and software distributions.
Is it safe to extract 7Z files online?
Yes. All extraction happens in your browser. Files are never uploaded to any server, ensuring complete privacy and security.
What compression methods does 7Z support?
7Z primarily uses LZMA and LZMA2 compression, but also supports PPMD, BCJ, BCJ2, BZip2, and Deflate methods for optimal compression.
Can I extract password-protected 7Z archives?
Yes. Enter the password when prompted and the archive will be unlocked entirely in your browser.
Can I extract split 7Z archives?
Yes. Split archives using the .001, .002, … naming convention are supported. Drop all parts onto the page and the extractor reassembles them.
What is a 7Z file?
7Z is a compressed archive format that provides high compression ratios using LZMA and LZMA2 compression methods. It's commonly used for large files and software distributions.
Is it safe to extract 7Z files online?
Yes. All extraction happens in your browser. Files are never uploaded to any server, ensuring complete privacy and security.
What compression methods does 7Z support?
7Z primarily uses LZMA and LZMA2 compression, but also supports PPMD, BCJ, BCJ2, BZip2, and Deflate methods for optimal compression.
Can I extract password-protected 7Z archives?
Yes. Enter the password when prompted and the archive will be unlocked entirely in your browser.
Can I extract split 7Z archives?
Yes. Split archives using the .001, .002, … naming convention are supported. Drop all parts onto the page and the extractor reassembles them.