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Trusted file extension guides and opening help from the original project since 2008.

How to open .GZ files on Mac

To open .GZ files on Mac, double-click to decompress in finder for simple files..

Step-by-step instructions

  1. Double-click to decompress in Finder for simple files.
  2. Use gunzip in Terminal for precise control.

Recommended software

  • Archive Utility
  • Keka
  • The Unarchiver

Alternative methods

  • Open .GZ in a browser-based viewer if desktop apps fail.
  • Try opening .GZ on Mac with a secondary app to rule out app-specific issues.
  • Convert .GZ only with trusted tools when direct opening is not possible.

Common issues

Decompressed file has no extension

The original filename may not include a standard extension.

  1. Inspect file with file command on Linux/macOS.
  2. Open in a text editor to identify content type.
  3. Rename only after confirming actual format.

Security note

Compressed files can hide malicious payloads.

Back to .GZ extension page