Open 7Z — and every other archive — right in your browser
Drop a .7z, .zip, .rar, .tar.gz, .bz2 or anything else. Browse it, preview the files, pull out exactly what you need. Nothing uploads. No signup, no watermarks, no quotas.
//Tools
Extract Archive
Open 7Z, ZIP, RAR, TAR, GZ, BZ2, XZ, CAB, ISO — browse the tree, preview, extract all or just what you want.
Create ZIP
Bundle files or a whole folder into a ZIP. Add AES-256 if you want it locked.
Convert to ZIP
Repack a 7Z, RAR or TAR as a clean ZIP — useful for sharing with people on locked-down systems.
//Format-specific
//Why extract7z?
No uploads, ever
The archive is read by WebAssembly inside your browser. The bytes never leave the tab.
Offline-capable
Load the page once, then disconnect. Every tool keeps working.
No limits
No quotas, no daily caps, no signup, no waiting in a queue. Only your RAM matters.
Browse first, extract second
See what's inside a 7Z before you commit. Search, preview images and text, save just the files you actually want.
//FAQ
Do my files actually stay on my device?
Yes. Every operation runs in JavaScript and WebAssembly inside your browser. You can verify by opening the page, pulling the network plug, and trying any tool — it still works.
Which formats does extract7z read?
7Z (LZMA / LZMA2, AES-256, header-encrypted, solid), ZIP (including AES), RAR v4 & v5, TAR, GZ, BZ2, XZ, LZMA, CAB, ISO, AR, CPIO and most other libarchive-supported formats. For writing we produce ZIP.
Can I open password-protected 7z files?
Yes — even ones with header encryption (where the file list itself is encrypted). Type the password into the password field before clicking Open Archive.
Is there a file size limit?
Only your device's available memory. Most browsers cap a single allocation at about 2 GB. Anything under a few hundred MB works comfortably on a modern laptop.
Why is it free?
The site is supported by unobtrusive ads. There's no server doing the work, so running it is mostly the cost of static hosting.
Does it work on mobile?
Yes, although decompressing a large 7Z on a phone will be slower than on a laptop because LZMA is CPU-heavy.