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lzip vs SysTools Zip Repair

Both stand on file repair software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

lzip

Free plan LinuxMacSelf-hosted+1

lzip emphasizes interoperable .lz archives, integrity checks, and long-term access, with a related utility for certain recovery tasks. Its documented use centers on command-line tools and compiling the software where needed.

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SysTools Zip Repair

Free plan Windows

Choose SysTools Zip Repair when damaged ZIP archives need previewable recovery, password support, and batch processing on Windows. The main reasons to look elsewhere are the Windows-only platform and the demo’s lack of extraction. Larger deployments may need the Business or Enterprise license tiers.

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The facts

lzipSysTools Zip Repair
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Mac, Self-hosted, WindowsWindows
Lowest paid planNot publishedPersonal License: $20, paid once
Plans publishedNone3
MakerNot publishedNot published
Websitenongnu.orgsystoolsgroup.com
On file repair software#6 of 34#13 of 34

lzip: what it does well

  • Free lossless compression using a simplified LZMA form
  • CRC32 and other integrity information detect errors
  • Unlimited total file size through multiple members
  • Related lziprecover can repair certain damaged files
  • GNU Tar supports lzip-compressed archives

What to know first

  • Maximum dictionary size is 512 MiB
  • Build instructions require compiling with configure and make
  • The listed interface is command-line tools

SysTools Zip Repair: what it does well

  • Repairs ZIP and compressed WinZip archives
  • Supports password-protected ZIP recovery
  • Previews files before saving
  • Batch repair and batch extraction
  • No stated file-size limitation

What to know first

  • Windows platform only
  • Free demo cannot extract recovered files
  • Activation normally requires internet access
  • Paid licenses start at $20

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