The Unarchiver Alternatives for Windows
The Unarchiver is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The most popular Windows alternative is 
7-Zip, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to The Unarchiver and many of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to The Unarchiver are 
PeaZip (Free, Open Source), 
Bandizip (Freemium), 
FreeArc (Free, Open Source) and 
B1 Free Archiver (Free).
- 7-Zip is a file archiver with a high compression ratio. View 105 alternatives to 7-Zip
- Free • Open Source
- Windows
- Linux
- BSD
- PortableApps.com
- ReactOS
- PeaZip is free file archiver utility, based on Open Source technologies of 7-Zip, p7zip, FreeArc, PAQ, and PEA projects. View 92 alternatives to PeaZip
- Free • Open Source
- Windows
- Linux
- BSD
- PortableApps.com
- Bandizip is a powerful archiver which provides an ultrafast processing speed and convenient features. Available free of charge, and its paid editions support a variety of advanced features. View 86 alternatives to Bandizip
- FreeArc is a free and open source file archiver developed by Bulat Ziganshin. View 79 alternatives to FreeArc
Discontinued
Latest alpha version from August 2012 - http://freearc.org/history/changelog_full.htm
- Free • Open Source
- Windows
- Linux
- B1 Free Archiver is a free multi-platform universal archiver. Currently it works on Windows, Mac, Linux and Android; moreover B1 Online Archiver allows you to uncompress . View 83 alternatives to B1 Free Archiver
- IZArc is the best freeware archive utility supporting many archive formats like: 7-ZIP, A, ACE, ARC, ARJ, B64, BH, BIN, BZ2, BZA, C2D, CAB, CDI, CPIO, DEB, ENC, GCA, GZ, GZA, HA... View 90 alternatives to IZArc
Bundleware
- Free • Proprietary
- Windows
- iPhone
- iPad
- PowerArchiver is a proprietary file archiver for Microsoft Windows. It supports full read-write access to several different archive formats, including ZIP, 7z and Tar. View 80 alternatives to PowerArchiver
- The world's best file compressor in the world. Start saving your time with the world's #1 compression software. Zip, protect, manage and share all your files quickly and easily. View 98 alternatives to WinZip
- A simple and easy to use GUI based on 7zip for creating self-extracting archives and self-extracting installers. View 80 alternatives to 7z SFX-Creator
Discontinued
The project seems to be no longer maintained. Last version, 1.3, released in October 2012, can be still downloaded from Google Project Hosting.
- Free • Open Source
- Windows
- Zipware is simple and free zip software for Microsoft Windows that supports all major archiving formats including the new RAR5 format. View 55 alternatives to Zipware
- Free • Proprietary
- Windows