GZ → 7Z / online converter

GZ to 7Z Converter

Convert a TAR.GZ or TGZ tarball to 7Z for a smaller file. A single .gz file works too.

01 / how to

How to convert GZ to 7Z

01

ADD YOUR GZ

Drop the GZ file into the box above or choose it from your device.

02

CONVERT TO 7Z

7Z is already selected. Press Convert and wait a few seconds.

03

DOWNLOAD

Save the finished 7Z file. The original is deleted from our server.

02 / what you get

What happens to your data

Kept

  • Folders (including empty ones) and file names in any language, such as Cyrillic or Polish, are kept
  • File dates and Unix permissions are kept, so a script that was executable stays executable
  • Works with .tar.gz and .tgz archives. A single compressed file such as data.csv.gz also works: it goes into the new archive under its original name
  • Tight LZMA2 compression, usually the smallest result of all archive formats here

Good to know

  • Windows and macOS cannot open 7Z by themselves. The receiver needs 7-Zip, Keka or similar software.
  • Big archives take noticeably longer to pack as 7Z than as ZIP or TAR.GZ.
  • The size gain depends on the files: photos, videos and other already compressed files shrink very little.
  • Links (shortcuts) and special files inside the archive are left out. Only real files and folders are converted.
  • Archives up to 300 MB are accepted. An archive that unpacks to more than 500 MB or 20,000 files is refused.

03 / formats

GZ vs 7Z

GZ

A .tar.gz file (sometimes called a tarball) is a TAR archive that's been compressed with gzip — the most common archive format on Linux and for open-source software downloads.

Used in: Linux software downloads · Open-source releases · Server backups

7Z

A 7Z file is the archive format of the 7-Zip tool. It usually compresses tighter than ZIP, which makes it popular for large downloads and backups, but Windows and macOS can't open it without extra software.

Used in: Large downloads · Backups · Game mods & software

04 / more

More conversions

From GZ

GZ to ZIPGZ to TAR

To 7Z

ZIP to 7ZTAR to 7Z

Have a different file? Open the main converter — it detects the format for you.