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CabPack

CabPack

CabPack is an open-source alternative to WinZip and WinRAR for compressing and decompressing files in Windows. It supports common compression formats like ZIP, RAR, 7Z, and more.
CabPack screenshot

CabPack: Open-Source Compression Alternative

CabPack is an open-source alternative to WinZip and WinRAR for compressing and decompressing files in Windows. It supports common compression formats like ZIP, RAR, 7Z, and more.

What is CabPack?

CabPack is a free, open-source file archiver for Windows that can create and extract archives in various formats including ZIP, RAR, 7Z, BZIP2, GZIP, TAR, ISO, and more. It provides an easy-to-use interface for compressing and decompressing files to save disk space or bundle multiple files together.

Key features of CabPack include:

  • Intuitive explorer-style interface
  • Support for drag-and-drop of files/folders
  • Password protection of archives
  • Compression ratio and dictionary size options
  • Integration with Windows File Explorer context menu
  • Lightweight and customizable user interface
  • Multi-core CPU support for faster compression

CabPack is released under the GNU General Public License v3.0. It runs on Windows 7 or later versions. The project is hosted on GitHub and accepts contributions from developers.

Overall, CabPack is a great open-source alternative for basic file archiving needs on Windows. It may lack some advanced features of proprietary software like WinRAR or WinZip but provides a simple free option for compressing and uncompressing files and folders.

CabPack Features

Features

  1. Open source alternative to WinZip/WinRAR
  2. Supports ZIP, RAR, 7Z and other compression formats
  3. Compress and decompress files
  4. Integrates with Windows Explorer context menu
  5. Drag and drop support
  6. Create self-extracting archives
  7. Encrypt archives with passwords
  8. Split large archives into volumes
  9. Command line interface

Pricing

  • Open Source

Pros

Free and open source

Good compression ratios

Easy to use interface

Lightweight and fast

Supports many formats

Cons

Limited features compared to WinRAR

No built-in file manager

Lacks some advanced compression options

UI looks a bit dated

Reviews & Ratings

Login to Review
3.4

23 reviews

Rating Breakdown
Ease of Use
3.3
Features
3.6
Value for Money
4.8
Customer Support
2.4
Overall Experience
3.3
Recent Reviews
C
Chris Wright
Apr 23, 2026
Frustratingly Basic and Buggy

I tried CabPack hoping for a lightweight alternative, but it's been a headache. The interface feels clunky and dated, and it frequently froze on larger archives. For a free tool, it's fine for tiny tasks, but for anything serious, I'd …

M
Morgan Lee
Apr 21, 2026
Decent Free Alternative, But Lacks Polish

CabPack gets the job done as a free, open-source option for handling ZIP and RAR files, which is great. However, the interface feels a bit dated and clunky compared to modern competitors, and I've had a few minor hiccups when …

J
Jordan Moore
Apr 17, 2026
A Solid, Free Alternative for Everyday Archiving

CabPack has completely replaced WinRAR on my PC. It's simple, opens all the common ZIP and RAR files I encounter, and hasn't crashed once. Being open-source and free is just the icing on the cake.

M
Morgan King
Apr 16, 2026
Buggy and frustrating free alternative

I gave CabPack a try since it's free and open-source, but it's been a headache. The interface feels clunky compared to WinRAR, and it frequently crashed when handling large RAR files. For basic ZIP tasks it works, but for anything …

C
Casey Miller
Apr 16, 2026
A decent free alternative, but missing some polish

CabPack gets the job done for basic ZIP and 7Z tasks without costing a dime, which is its main appeal. However, its interface feels a bit dated and clunky compared to the more established tools, and I had occasional trouble …

Rating Distribution
5
7
4
5
3
6
2
5
1
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