Z to TAR.XZ Converter

Convert Z (Unix compress file) files to TAR.XZ online, for free, with nothing to install.

To convert Z to TAR.XZ, select or drop your .z file above, check that TAR.XZ is chosen as the output, and click Convert. Files up to 200 MB are converted right in your browser, so they never leave your device.

What is a Z file?

Z – Unix compress file. Z is a single file compressed with the classic Unix compress program. It has mostly been replaced by gzip.

Z Converter →

What is a TAR.XZ file?

TAR.XZ – Tar compressed with xz. TAR.XZ is a TAR archive compressed with xz. The TAR keeps folders and Unix permissions; xz makes it smaller.

TAR.XZ Converter →

How to convert Z to TAR.XZ

  1. Click Select File, or drop your .z files anywhere on this page. You can add several at once.
  2. Check that TAR.XZ is chosen as the output format. On this page it is picked for you.
  3. Click Convert. When a file has to go to our server, the button says Upload and convert instead.
  4. Click Download next to each file when it's done.

Z vs TAR.XZ: how they compare

ZTAR.XZ
TypeCompressed single fileCompressed TAR archive
HoldsOne fileMany files and folders
CompressionLZWLZMA2
EncryptionNoneNone
Created byUnix compress, 1984—
Best forOpening old Unix filesCompressed folders on Linux (xz)

Good to know

  • a Z file holds a single compressed file, so the result is a TAR.XZ archive with that one file in it.
  • Z is an old format that today's computers rarely open by themselves. TAR.XZ files are much easier to open, share and keep.
  • Symbolic links, hard links and special files (such as devices) are left out of the result for safety; the page tells you when it does this.

Frequently asked questions

Is converting Z to TAR.XZ free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my Z files uploaded anywhere?

Files up to 200 MB never leave your device: ConvertKitty runs 7-Zip inside your browser. Only larger files, or formats your browser cannot handle, are sent to our server, over an encrypted connection, and deleted 72 hours after the conversion. The button says "Upload and convert" whenever that happens.

How large can the Z file be?

Files up to 200 MB are converted right in your browser. Larger files, up to 1 GB, are converted on our server.

Will the folders inside my Z be kept?

a Z file holds just one file, so there are no folders to keep: the TAR.XZ will contain that one file.

Can I convert several Z files at once?

Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.

Convert Z to other formats

Convert other files to TAR.XZ

Just need the files inside?

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