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Managing compressed files on a Mac can sometimes be a challenge, especially when dealing with less common archive formats. While macOS has a built-in archive utility, it has limitations. This is where The Unarchiver comes in – a powerful, free tool that expands the supported file formats and provides a seamless way to extract archives.
What is The Unarchiver?
The Unarchiver is a free and lightweight application that allows Mac users to extract a wide variety of compressed files beyond the default capabilities of macOS. Unlike the built-in Archive Utility, which primarily supports ZIP and a few other formats, The Unarchiver extends support to a much broader range, making it an essential tool for anyone dealing with archives regularly.
Key Features of The Unarchiver
One of the most compelling reasons to use The Unarchiver is its extensive feature set. Below are some of its key benefits:
- Support for multiple formats: It can open ZIP, RAR (including v5), 7-Zip, TAR, GZIP, BZIP2, and more.
- Compatibility with old and exotic formats: The app also supports older archive types such as StuffIt, DiskDoubler, LZH, and ARC, ensuring that even legacy files can be accessed.
- Automatic file extraction: Once a file is double-clicked, it extracts contents automatically to the same folder, eliminating unnecessary steps.
- Handling foreign characters properly: Unlike some utilities, The Unarchiver preserves special characters in file names, ensuring accurate extraction regardless of language settings.
- Completely free: It comes at no cost, making it accessible for all macOS users without requiring a subscription or payment.

Common Use Cases for The Unarchiver
This tool isn’t just for opening ZIP files. Here are some common scenarios where it becomes invaluable:
- Extracting multipart RAR files: The macOS default utility does not support multipart RAR archives, but The Unarchiver handles them with ease.
- Opening password-protected archives: If you have a password-protected file, the software will prompt you for the password and extract it accordingly.
- Decompressing files downloaded from the internet: Many online downloads come in compressed formats like 7z or TAR.GZ, which benefit from this tool’s extended format compatibility.
How to Install and Use The Unarchiver on Mac
Installing and using The Unarchiver is straightforward and requires only a few steps:
Step 1: Download the Application
Visit the official site or the Mac App Store and download The Unarchiver.
Step 2: Install and Configure Preferences
After installation, open the application and configure settings. You can choose file formats that should automatically be handled by the tool, specify the default extraction location, and enable additional preferences like file name encoding handling.
Step 3: Extract Files
Once set up, double-click an archive file, and The Unarchiver will automatically extract its contents to the chosen location. If a password is required, it will prompt you to enter it.

Comparison: The Unarchiver vs. macOS Archive Utility
For Mac users who are unsure whether to use The Unarchiver over the system’s default archive utility, it helps to compare the two:
Feature | The Unarchiver | macOS Archive Utility |
---|---|---|
Supported File Formats | ZIP, RAR, 7z, TAR, GZ, BZ2, LZH, and more | Mostly ZIP, limited TAR and GZ support |
Multipart Archive Support | Yes | No |
Password-Protected Archives | Yes | No |
File Name Character Encoding | Handles foreign characters accurately | Often causes issues |
Final Thoughts
For Mac users who frequently deal with compressed files, The Unarchiver is an essential tool. It extends the functionality of macOS by supporting a wide range of archive formats, making it far superior to the default archive utility. Its ease of use, automatic extraction, and advanced support for older and obscure file formats make it an excellent choice for managing compressed files effortlessly.

Whether you’re opening a simple ZIP file or handling a complex, multi-part RAR archive, The Unarchiver ensures your files are extracted quickly and efficiently – all for free.
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