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Z ZIP
Free online converter

Convert Z to ZIP

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Z to ZIP converterFREE
Drop a .Z file here
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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert Z to ZIP

  1. Add your .Z file - drop it in the box above or click to browse.
  2. Convert it to .ZIP in a few seconds.
  3. Download your new .ZIP file.

What to expect

  • No data is lost - ZIP uses Deflate instead of LZW, so the output is typically the same size or a few percent smaller.
  • .Z holds exactly one file; if the content is a tarball (.tar.Z), you must also unpack the .tar to access the individual files inside.
  • Do not rename .Z to .zip - the file headers are incompatible (.Z starts with 1F 9D, ZIP with 50 4B) and ZIP tools will reject the file.

Frequently asked questions

Can I just rename the .Z file to .zip?
No - renaming does not change the file data. ZIP tools check the file header and will reject a .Z file regardless of its name.
My .Z extracted to a file with no extension - is that normal?
Yes. uncompress removes the .Z suffix and restores the original filename; if the result is data.tar, you still need to untar it to reach the files inside.
Can 7-Zip convert .Z to ZIP in one step?
No - 7-Zip can extract a .Z and create a ZIP, but these are two separate operations; there is no single Convert button.
Will the ZIP be larger or smaller than the original .Z?
Usually about the same size; ZIP's Deflate algorithm often compresses slightly better than the older LZW used by .Z, so the output may be a few percent smaller.
Learn about the formats: .Z · .ZIP
Programs that convert Z: WinZip · WinRAR · 7-zip · ALZip · Zipeg for Mac · StuffIt for Mac · StuffIt Deluxe for Mac