00archive

7Z

7-Zip Archive

7z uses LZMA2 and generally produces the smallest archives of the three common formats. It is open and free, but neither Windows Explorer nor macOS Finder opens it without extra software.

Extension: .7z
MIME type: application/x-7z-compressed

01 Convert 7Z to something else

7Z to ZIP For the machine that does not have 7-Zip on it.

03 Related formats

Opening a .7z file

If you landed here because something handed you a .7z file and nothing on your machine will open it, converting it to a format you already have a reader for is usually faster than installing new software. Every conversion above runs in this browser — the file is not uploaded, so it works on a locked-down work machine and on a file you are not allowed to send anywhere.