The Unarchiver
Unpacks archive files like ZIP, RAR, and more
Install with Homebrew
brew install --cask the-unarchiver
The Unarchiver — Official Website
Quick Take: The Unarchiver
Keep The Unarchiver at 4.3.9 on every Mac that still receives RAR or 7z mail. Free under MacPaw, slow to ship new versions, still better than Archive Utility for stubborn formats and non-ASCII filenames. Add Keka when you also need to create archives. Do not expect a subscription wall for basic extraction.
Best For
- •Mac users who receive .rar and .7z files and can't open them
- •Users who work with files from international sources (encoding detection)
- •Anyone who wants set-and-forget archive extraction
- •Non-technical users who want archives to just work
What is The Unarchiver?
As of August 2026, The Unarchiver remains free under MacPaw at version 4.3.9 (18 March 2025). Alive, not discontinued, slow to version. It still runs on Apple Silicon and macOS Tahoe 26.x as a set-and-forget extractor for RAR, 7z, and formats Archive Utility will not touch. The Unarchiver only extracts. No compression UI, no archive creation. Double-click an archive and it unpacks. Format coverage includes ZIP, RAR, 7z, TAR, GZIP, BZIP2, LZH, ARJ, ARC, plus a long tail of obscure formats most people never see. macOS Archive Utility still focuses on ZIP. If someone sends a .rar or .7z in 2026, the system app often cannot open it. Install The Unarchiver, make it the default handler, and Finder double-clicks start working for those formats. Dag Ågren created the app; MacPaw maintains the Mac App Store and Homebrew builds. It has been around since 2009 with millions of installs. Typical setup is install once, accept the default-handler prompt, and stop thinking about it. The hard limit is creation: you cannot build .7z or fancy ZIP packages inside The Unarchiver. Use Keka or Finder's Compress when you need to ship archives. Plenty of people only receive archives, so extraction-only is enough. Filename encoding is the other reason to keep it. Archives from Windows or Linux with Japanese, Chinese, Korean, Cyrillic, or accented European names often land as mojibake under Archive Utility. The Unarchiver detects encodings and writes correct Unicode names, which matters if you trade files with international teams.
Closer look: why archive filenames break on Mac
Filename encoding in archives looks minor until a ZIP from a Windows PC lands with mojibake folder names. Millions of Mac users hit that once and never forget it.
History & Background
In the early days of computing, different regions used different character encodings: Shift-JIS for Japanese, GBK for Chinese, EUC-KR for Korean, Windows-1252 for Western European. Archives created on Windows stored filenames in the local encoding. When extracted on macOS (which uses UTF-8), the filenames appeared as garbled characters, mojibake. The Unarchiver solved this by detecting the source encoding and converting to UTF-8.
How It Works
The Unarchiver uses heuristic encoding detection (similar to how browsers detect webpage encoding) to identify the character encoding used in archive metadata. It examines byte patterns, character frequency, and structural clues to determine the most likely encoding. This works correctly in the vast majority of cases.
Ecosystem & Integrations
macOS's Archive Utility doesn't do encoding detection, it assumes UTF-8 and garbles anything else. Keka handles encoding better than Archive Utility but The Unarchiver's detection is more sophisticated. On Windows, 7-Zip has similar encoding handling. The underlying problem is that the ZIP format specification originally didn't require UTF-8, it was only mandated in later versions.
Future Development
The encoding problem is slowly resolving as more tools create archives with UTF-8 filenames by default. But legacy archives and some Windows software still use local encodings. The Unarchiver's encoding detection will remain relevant for years.
Key Features
Exhaustive Format Support
The Unarchiver extracts ZIP, RAR (including v5), 7z, TAR, GZIP, BZIP2, LZMA, XZ, CAB, MSI, NSIS, EXE (self-extracting), ISO, BIN, LZH, ARJ, ARC, PAK, ZOO, LBR, WARC, and more. The format list includes formats that haven't been common since the 1990s (ARJ, ARC, ZOO), but if you somehow encounter one, The Unarchiver handles it. For practical purposes, it opens everything.
Automatic Encoding Detection
Archives created on Windows with Shift-JIS, GBK, EUC-KR, or Windows-1252 encoded filenames often appear garbled on macOS. The Unarchiver detects the filename encoding and converts it to proper Unicode. This is especially important for users who work with files from Japan, China, Korea, or Eastern Europe.
Finder Integration as Default Handler
Set The Unarchiver as the default application for archive file types. After that, double-clicking any supported archive in Finder extracts it with The Unarchiver instead of the limited Archive Utility. You can configure this globally or per file type.
Extraction Location Options
Choose where extracted files go: same folder as the archive, Desktop, Downloads folder, a custom folder, or ask every time. The 'same folder' option is the most natural, you extract right where the archive is.
Create Folder Behavior
The Unarchiver can create a new folder for extracted contents or extract directly. If an archive contains a single folder, it can skip creating an extra wrapper folder (preventing double-nesting). This intelligent behavior avoids the annoying 'folder inside a folder' problem.
Password-Protected Archive Support
When you open a password-protected archive, The Unarchiver prompts for the password before extracting. It handles encrypted ZIP, 7z, and RAR archives.
Move Archive to Trash After Extraction
Optionally delete (move to Trash) the archive file after successful extraction. This keeps your Downloads folder clean, you extract the file and the .zip or .rar disappears automatically.
Spotlight and Quick Look Integration
The Unarchiver includes a Quick Look plugin that lets you preview archive contents by pressing Space in Finder. You can see file names and sizes without extracting. Spotlight also indexes archive contents for search.
Who Should Use The Unarchiver?
1The Non-Technical Mac User
Someone emails you a .rar file. You double-click it and macOS says it can't open it. You Google the problem, install The Unarchiver from the App Store, and double-click again. It extracts. You never think about archive formats again because every format just works.
2The International File Handler
You receive ZIP files from Japanese colleagues. When you extract with Archive Utility, the folder names are garbled mojibake characters. Install The Unarchiver, extract the same files, and the Japanese filenames display correctly. The encoding detection fixes a problem Apple hasn't bothered to solve.
3The Downloads Folder Minimalist
Your Downloads folder fills up with .zip, .rar, and .7z files that you've already extracted. Enable 'Move archive to trash after extraction' and The Unarchiver automatically cleans up after itself. You extract files and the archive disappears.
4The Retro Computing Hobbyist
You're downloading old software from archive.org that's compressed in ancient formats: ARJ, LZH, ARC. Modern tools can't open them. The Unarchiver handles formats from every era of computing, even the ones nobody remembers.
How to Install The Unarchiver on Mac
The Unarchiver is available from the Mac App Store and Homebrew.
Install via Homebrew
Run brew install --cask the-unarchiver in Terminal. Alternatively, download it for free from the Mac App Store.
Launch and Set as Default
Open The Unarchiver once. It will offer to set itself as the default handler for all supported archive formats. Accept this, it's the whole point.
Configure Extraction Settings
In Preferences, set your extraction destination (same folder recommended), folder creation behavior (create folder if there isn't one), and whether to move archives to trash after extraction.
Forget About It
The Unarchiver runs automatically whenever you double-click an archive. You'll never need to open it manually again.
Pro Tips
- • The 'Move to Trash' option keeps your Downloads folder clean, highly recommended.
- • If you also need to create archives, install Keka alongside The Unarchiver.
- • The Unarchiver handles formats Archive Utility can't: RAR, 7z, TAR.GZ, and more.
Configuration Tips
Enable 'Move to Trash' for Clean Downloads
In Preferences, enable 'Move archive to Trash after extraction'. Your Downloads folder stays clean because archives are removed after their contents are extracted.
Set Smart Folder Creation
Configure folder creation to 'Create folder if there isn't one'. This prevents archive contents from scattering across your directory while avoiding the double-folder problem when the archive already contains a root folder.
Pair with Keka for Full Archive Functionality
Install Keka for compression and keep The Unarchiver as the default extraction handler. The Unarchiver handles double-click extraction; Keka handles drag-and-drop compression from the dock.
Check File Associations After macOS Upgrades
Major macOS upgrades sometimes reset file associations. After upgrading, open The Unarchiver once to re-register as the default archive handler.
Alternatives to The Unarchiver
Archive extraction on macOS has several options:
Keka
Keka both creates and extracts archives. If you need compression (not just extraction), Keka is the better choice. Many users install both: The Unarchiver as the default double-click handler, and Keka in the dock for drag-and-drop compression.
Archive Utility (Built-in)
macOS's built-in utility handles ZIP only. No RAR, no 7z, no TAR.GZ. Also garbles non-ASCII filenames. The Unarchiver replaces it completely.
BetterZip
BetterZip ($24.95) offers archive browsing, Quick Look preview, and Finder toolbar integration. It's more polished but paid. For pure extraction, The Unarchiver is free and equally capable.
p7zip (Command Line)
Install via Homebrew (brew install p7zip) for command-line extraction: 7z x archive.7z. Best for scripts and automation.
Pricing
The Unarchiver is completely free on both the Mac App Store and via direct download/Homebrew. No ads, no in-app purchases, no premium features locked behind a paywall. MacPaw's product page lists latest version 4.3.9 (18 March 2025) heading into August 2026. MacPaw may cross-promote other products, but extraction remains free. This free model is a major reason it remains a default utility on personal and fleet Macs.
Pros
- ✓Extracts every archive format you'll encounter (and many you won't)
- ✓Free with no ads or premium tier
- ✓Correct handling of non-ASCII filenames (Japanese, Chinese, Korean, etc.)
- ✓Set-and-forget: configure once, works automatically from Finder
- ✓Option to delete archives after extraction
- ✓Quick Look plugin for previewing archive contents
- ✓Available on the Mac App Store for easy discovery
- ✓Lightweight, minimal resource usage
Cons
- ✗Extraction only, cannot create archives
- ✗No archive browsing (can't view files without extracting)
- ✗No compression level selection (extraction only)
- ✗Quick Look plugin occasionally doesn't work after macOS updates
- ✗UI is minimal to the point of being non-existent, works but isn't pretty
Community & Legacy
The Unarchiver was originally created by Dag Ågren and has been a Mac essential since 2009. The project is now maintained by MacPaw and the underlying engine (XADMaster) remains open-source on GitHub. It remains one of the most downloaded free utilities on the Mac App Store and consistently appears in 'essential Mac apps' lists. The app's character encoding handling has made it particularly popular in East Asian countries where filename encoding issues are a daily frustration. Development continues with compatibility updates for new macOS versions. As of August 2026 it remains a sensible default free utility on Apple Silicon Macs running macOS Tahoe 26.x.
Video Tutorials
Getting Started with The Unarchiver
More Tutorials
How to Open 7z Files with Unarchiver in Mac OS X
EvilComp • 11.1K views
How to Open Rar File on Mac | How to Extract RAR Files on macOS
ProgrammingKnowledge2 • 578.7K views
How to Install and Use The Unarchiver on macOS 26
Easy Tech Steps • 82 views
Frequently Asked Questions about The Unarchiver
About the Author
Productivity & Workflow Analyst
Expert Tips for The Unarchiver
Mac users still pair The Unarchiver with Keka, Unarchiver for stubborn extract formats, Keka when they also need to create archives.
Slow version churn is tolerated because the utility already covers the formats people hit in daily work; free RAR extraction remains the killer use case versus Archive Utility.
Related Technologies & Concepts
Related Topics
Sources & References
Fact-CheckedLast verified: Aug 9, 2026
Key Verified Facts
- The Unarchiver latest published version is 4.3.9 (18 March 2025).[cite-1, cite-4]
- The Unarchiver is free without in-app purchases for extraction features.[cite-1, cite-3]
- MacPaw acquired The Unarchiver and continues distributing it as a free app.[cite-5, cite-1]
- 1
- 2
- 3
- 4
- 5
- 6
- 7
Research queries: The Unarchiver 4.3.9; MacPaw The Unarchiver free; Keka vs The Unarchiver