7-Zip 26.02

Igor Pavlov ❘ Open Source ❘
Windows Mac
out of 2175 votes ❘
Rank 2 among competitors

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<h3>Overview</h3>
<p>7-Zip is a free, open-source file archiver developed by Igor Pavlov that delivers high compression ratios, broad format support, and deep Windows integration. It combines a straightforward graphical file manager, a powerful command-line interface, and lightweight installers for 32-bit, 64-bit and ARM64 Windows platforms.</p>

<p>Official downloads are small (around 1.3–1.6 MB) and available for Windows x86 (32-bit), x64 (64-bit) and ARM64. Download packages and checksums are published on the official site.</p>

<h3>Key features</h3>
<ul>
<li>High compression in the native <em>.7z</em> format using LZMA and LZMA2 algorithms.</li>
<li>Improved ZIP and GZIP compression ratios compared with many legacy tools.</li>
<li>Strong AES-256 encryption support for <em>.7z</em> and <em>.zip</em> archives.</li>
<li>Self-extracting (SFX) archives for easy distribution without extra software.</li>
<li>Integration with Windows Shell for context-menu archiving and extraction.</li>
<li>Powerful command-line utility suitable for scripts and automation.</li>
<li>Localizations for more than 80 languages and broad compatibility across Windows versions (including Windows 11 and server editions).</li>
</ul>

<h3>Supported formats</h3>
<p>Packing and unpacking:</p>
<ul>
<li><em>.7z</em>, <em>.xz</em>, <em>.bzip2</em>, <em>.gzip</em>, <em>.tar</em>, <em>.zip</em>, <em>.wim</em></li>
</ul>
<p>Unpacking only (selected list):</p>
<ul>
<li>RAR, ISO, CAB, DMG, ARJ, MSI, NSIS, VMDK, VHD, VHDX, QCOW2, UDF, GPT and many filesystem images.</li>
</ul>

<h3>Performance and compression</h3>
<p>7-Zip’s LZMA/LZMA2 engines are optimized for maximum compression ratios in the <em>.7z</em> container, often outperforming legacy ZIP implementations by a significant margin. For ZIP and GZIP, 7-Zip typically achieves 2–10% better compression than PKZip and WinZip in many scenarios. Users can balance speed and ratio through multiple compression levels and solid archive options.</p>

<h3>Security and self-extracting archives</h3>
<p>Encryption uses AES-256 for both <em>.7z</em> and <em>.zip</em> archives, and the application supports creating self-extracting archives that run on target systems without requiring 7-Zip to be installed. This combination is useful for secure distribution and deployment workflows.</p>

<h3>Integration, interface and automation</h3>
<p>7-Zip includes a file manager that behaves similarly to Windows Explorer for browsing and editing archives, plus context-menu commands for quick actions. The command-line version provides scripting-friendly options for batch processing, server-side workflows, and integration with automated build or backup systems. A plugin for FAR Manager is also available.</p>

<h3>License and suitability</h3>
<p>7-Zip is free to use in personal and commercial environments. Most source code is under the GNU LGPL, with some parts under the BSD 3-clause license and specific unRAR license restrictions. The small footprint and permissive licensing make it suitable for enterprises, developers, and home users who need a reliable archiver.</p>

<h3>Who should consider 7-Zip</h3>
<ul>
<li>Users needing maximum compression ratios for backups and distribution.</li>
<li>IT professionals and system administrators who require scripting and automation.</li>
<li>Anyone seeking a lightweight, free, and open-source replacement for proprietary archivers.</li>
</ul>

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24,724 users of UpdateStar had 7-Zip installed last month.

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