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How to Unzip a tar.gz File on Mac for Free
How to Unzip a tar.gz File on Mac for Free
  • Oka Assist
  • 2026-02-13 11:32:58

How to Unzip a tar.gz File on Mac for Free

Are you having a hard time trying to open a tar.gz file on your Mac? Don’t worry. You’re not the only one. While it’s possible to unzip a tar.gz file on Mac using Terminal, this cannot be very clear for many users. Luckily, third-party applications can unzip a tar.gz file with one click of your mouse.

Oka Unarchiver is the best free app that can assist you in opening tar.gz files on your Mac.

Oka Unarchiver Can Unzip a tar.gz File for Free.

Oka Unarchiver is a free app that can unzip tar.gz files with one click. The app offers a simple-to-use interface that unzips and extracts a wide range of file formats, including TAR.GZ, ZIP, ISO, RAR, and many more.

Oka Unarchiver Has Other Functions

Unarchiver provides a variety of functions to make unzipping and archiving files easier.

  1. Extract 7Z, RAR, ZIP, GZIP, TAR, LZIP, BZIP2, XZ, CAB, ACE, JAR, ISO, PAX, AR, CPIO, and other file types.

  2. Compress files and folders using ZIP format.

  3. Secure your compressed files with password protection.

  4. Unarchiver supports the latest Finder extension.

  5. The suspicious file detector can help you avoid malware.

  6. Archive folders into multi-part zip files.

OKA Unarchiver Is Easy to Use

Oka Unarchiver makes it easy to unzip a tar.gz file on your Mac. Even novice Mac users can quickly compress and unzip a tar.gz file using Unarchiver.

  1. Drag and drop files from your desktop into Unarchiver to zip or unzip files.
  2. Right-click on files in Finder to extract, compress, or preview them.
  3. Batch decompresses many files at once with one click.

Oka Unarchiver Is Free and Offers VIP Premium Service

You can unzip and archive files with Oka Unarchiver for free. The free version of the app provides ZIP compression and a wide range of extraction options, including tar.gz and many other popular file formats.

The VIP premium is available as a one-time purchase. You can also sign up for a monthly or yearly subscription.

VIP service includes no ads, volume compression, and password protection. You’ll also be given access to any upcoming premium features in future releases of Unarchiver.

Software Reviews

Customers have been highly pleased with Oka Unarchiver. Take a look at these five-star reviews.

⭐⭐⭐⭐⭐ I had some ancient .sit files created by a very early version of Stuffit. This application opened them when others I tried could not. I appreciate that the developer presents a pop-up window (upon opening the app) with clear, concise instructions to set up key features before use. It’s easy to use, drag and drop dream. Thank You! - tootall18

⭐⭐⭐⭐⭐ The app is easy to use! Super helpful and easy to use! - Mjgalore

Download Oka Unarchiver

You can start unzipping tar.gz files for free today. Oka Unarchiver is free online at Oka App Store or the Mac App Store. Download the app to enjoy one-click extracting and archiving of tar.gz and other file formats.

More info

Want to learn more about how Oka Unarchiver can help you unzip a tar.gz file on Mac for free? Learn more about the app and developer on the Oka Unarchiver download page.

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Mac System Data Exceeding 200GB? Here’s How to Actually Clear It — A Deep Dive with Heavy Keynote Usage and Time Machine as Examples I. Problem Overview After long-term use, some macOS users discover that “System Data” in Storage Settings grows abnormally large. Common symptoms include: System Data occupying 200GB or more https://cdn.okaapps.com/resource/图2.webp No corresponding files can be located in Finder Deleting caches or log files has little effect Third-party cleaning tools are ineffective Uninstalling and reinstalling apps (such as Keynote) does not help Even after reinstalling macOS, the issue reappears after some time This problem is especially common among heavy productivity users, such as those working extensively with Keynote, Final Cut Pro, or design tools. II. Commonly Tried but Ineffective Solutions Users typically attempt the following methods, most of which fail to solve the problem at its root: Manually deleting directories such as ~/Library/Caches and ~/Library/Logs Using third-party cleaning tools like CleanMyMac or similar utilities Uninstalling and reinstalling Keynote Reinstalling macOS via “Reinstall macOS” These approaches are limited because they do not address the real sources behind System Data inflation. III. What Exactly Is “System Data”? It is important to understand that: System Data is not a real folder, but rather a collection of data that macOS cannot accurately categorize. System Data may include, but is not limited to: macOS system temporary files Application and system caches Portions of the user Library (~/Library) Files Spotlight cannot classify Large resource files inside application packages Local caches from cloud services (such as iCloud or OneDrive) iPhone / iPad backup files Residual data from deleted user accounts Time Machine local snapshots As a result, System Data cannot be reliably inspected or reduced through simple cache deletion or Finder-based browsing. IV. Key Cause #1: Time Machine Local Snapshots Consuming Disk Space How Local Snapshots Work Even when no external drive or NAS is connected, macOS will: https://cdn.okaapps.com/resource/图3.webp Create a Time Machine local snapshot every hour Retain snapshots from the last 24 hours by default If the backup destination remains disconnected, keep local snapshots associated with the most recent full backup These snapshots: Are based on the APFS file system Do not appear as regular files Are entirely counted under System Data In some cases, local snapshots can consume tens or even hundreds of gigabytes. https://cdn.okaapps.com/resource/图4.webp Why They Sometimes Cannot Be Deleted When Time Machine uses a NAS or network storage device as its backup destination, the following situations may occur: The NAS was previously disconnected The network path or IP address changed The backup was not re-“claimed” by the system As a result, macOS may treat these snapshots as belonging to an unreachable backup destination, leading to: tmutil deletion failures Errors such as Stale NFS file handle Snapshots that cannot be reclaimed, causing persistent disk usage V. Key Cause #2: How Keynote and Similar Apps Amplify System Data Keynote itself is not malfunctioning, but its design inherently amplifies System Data usage: Keynote files are actually packages containing large numbers of resources These may include: High-resolution images Embedded videos Fonts Animation and transition assets Spotlight sometimes fails to correctly classify these resources, causing them to be grouped under System Data. For users who frequently create large, media-heavy presentations, steady growth in System Data over time is expected. VI. Effective Solutions (Prioritized) Solution 1: Verify and Restore Time Machine Backup Status (Recommended) Open Disk Utility From the menu bar, select Show APFS Snapshots Select the system Data volume Check whether a large number of Time Machine local snapshots exist If using a NAS as the backup destination: Reconnect the NAS Select the original backup in Time Machine settings Follow the prompts to claim the existing backup Once the backup relationship is properly restored, macOS can automatically manage and reclaim snapshot space. Solution 2: Use Disk Analysis Tools to Identify Real Space Usage It is recommended to use tools that analyze disk usage without automatically deleting files, such as: GrandPerspective EtreCheck The goal is to identify: Which files or directories consume the most space Whether disk usage is abnormally concentrated in specific areas Avoid relying on “one-click cleanup” tools. Solution 3: Check for Residual Data from Old User Accounts If the device previously: Had multiple user accounts Removed accounts without deleting their home folders Then old home directories may still exist and be counted as System Data. Solution 4: Rebuild the System Environment Completely (Last Resort) When System Data usage becomes severely unmanageable and no clear source can be identified, the only definitive solution is: Fully back up all current data Erase the disk and reinstall macOS During setup: Migrate only the user account Do not migrate system settings, applications, or Library data This approach completely removes legacy data structure issues. VII. Long-Term Prevention Tips (for Keynote and Content Creators) Archive older Keynote projects to an external drive or NAS Avoid storing large volumes of presentation files locally for long periods Keep the Time Machine backup destination consistently available Avoid third-party tools that perform automated “system-level cleaning” Periodically monitor disk usage with analysis tools VIII. Conclusion Abnormally large macOS System Data usage is rarely caused by a single cache or log issue. Instead, it is typically the result of Time Machine local snapshots, application package resources, and inherited historical data structures working together. Only by understanding what System Data actually contains—and addressing the root causes—can disk space issues be resolved effectively and long-term.
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