Convert 7Z files

Convert 7Z (7-Zip Archive) files into 9 formats, right in your browser. .7z · application/x-7z-compressed

About this format

Created by Igor Pavlov in 2001. 30–70% smaller than zip with strong encryption, but Windows and Mac cannot open it natively — 7-Zip must be installed.

What it can hold

Files and folders
Strong encryption (AES-256, filenames included)
Very large files

What it cannot

Native support — the recipient needs a program

When you convert it

7Z → ZIP

Larger, but anyone can open it.

When it will not open

No 7-Zip — it is free at 7-zip.org
Mac natively — needs The Unarchiver or similar

In one line Send a 7z to someone who does not know it and they cannot open it. Convert to zip first.

Convert this format into · 9

7Z→BZ2 7Z→CPIO 7Z→GZ 7Z→ISO 7Z→TAR 7Z→XAR 7Z→XZ 7Z→ZIP 7Z→ZST

Convert into this format · 24

ARJ→7Z BZ2→7Z CAB→7Z CPIO→7Z DMG→7Z GZ→7Z ISO→7Z LZH→7Z LZMA→7Z RAR→7Z RPM→7Z SQUASHFS→7Z TAR→7Z UDF→7Z VDI→7Z VHD→7Z VHDX→7Z VMDK→7Z WIM→7Z XAR→7Z XZ→7Z Z→7Z ZIP→7Z ZST→7Z

Frequently asked questions

How do I convert a 7Z file?

Drop the file into the window, pick the target format, and download the result. No account required.

Do I need to install anything?

No. It runs in your browser. A Windows installer is available separately if you prefer one.

What if the format I want isn't listed?

Every engine's capabilities are merged into a single graph, so unlisted pairs are chained automatically through intermediate formats along the least-lossy route.