7-Zip

What 7-Zip does

7-Zip is a free, open-source file archiver developed and maintained by Igor Pavlov as an individual project since 1999. The software delivers high-ratio compression via the proprietary LZMA and LZMA2 algorithms and the open 7z archive format, while also reading and writing more than 30 packing formats (7z, XZ, BZIP2, GZIP, TAR, ZIP, WIM) and unpacking over 45 additional formats including RAR, ISO, DMG, VHD, and VMDK. The product surface spans a Windows GUI File Manager, command-line versions for Windows/Linux/macOS across x86, x64, and ARM64 architectures, self-extracting (SFX) modules, and developer-facing components (7z.dll/7za.dll, the public-domain LZMA SDK in C/C++/C#/Java, and a lightweight 7zr.exe). It is localized into 87 languages and supports Windows 2000 through Windows 11 as well as server SKUs through Windows 2022.

The technology stack centers on LZMA (Lempel-Ziv-Markov chain-Arithmetic coding) and its multi-threaded successor LZMA2, augmented by executable-specific filters (BCJ/BCJ2, ARM, ARM64, PPC, SPARC, IA64) and AES-256 encryption with SHA-256 key derivation. Variable dictionary sizes up to 4 GB (64-bit) and decompression code size of 2-8 KB make the LZMA SDK attractive for embedded/ROM use. Compression performance benchmarks cite 2-10% better ratio than PKZip/WinZip on ZIP/GZIP, 30-100 MB/s decompression on a 4 GHz CPU, and recent versions support more than 64 CPU threads on Windows and 2MB huge pages on Linux.

The business model is non-commercial: 7-Zip is distributed free under the GNU LGPL (with BSD-licensed and unRAR-restricted components) for personal and commercial use, with no registration, no paid tiers, and no premium features. There is no corporate entity, no employees in the conventional sense, no funding, and no investors; revenue is effectively pre-revenue with only voluntary donations possible. Go-to-market is pure product-led growth — direct downloads from 7-zip.org and GitHub, SourceForge-hosted community forum and bug tracker, organic search, Windows Shell context-menu integration, and silent embedding through installer ecosystems (NSIS, Inno Setup) and OEM SDK usage (historically Adobe Flash Player). Customer segments span individual consumers using right-click extraction, developers/OEMs embedding LZMA SDK, and enterprise IT using the free-licensed binary for cross-platform backup and deployment.

Name

7-Zip

Legal name

Igor Pavlov

Website

https://7-zip.org

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

1–10 employees

Short description

7-Zip is a free, open-source file archiver developed by Igor Pavlov since 1999, offering high-ratio LZMA/LZMA2 compression across Windows, Linux, and macOS for individual users, developers, and enterprises.

Ownership category

akta.pro rank

Headquarters

HQ city

Novosibirsk

HQ country

Russia

HQ region

Europe

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Operations

Revenue model

1. Free Software Distribution: 7-Zip is completely free software with no revenue model. Users can download and use it on any computer, including commercial organizations, without registration or payment. The developer Igor Pavlov develops and maintains the software without a commercial business model.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

7-Zip is a free, open-source file archiver that compresses and decompresses files using the proprietary LZMA/LZMA2 algorithms and the open 7z archive format. It supports packing/unpacking for 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM, and unpacking for 45+ additional formats including RAR, ISO, DMG, VHD, and VMDK. The product is available as a GUI file manager, a command-line version, and developer-facing libraries (LZMA SDK, 7z.dll/7za.dll) for Windows, Linux, macOS, and BSD.

Product overview

7-Zip is a free, open-source file archiver with a high compression ratio. The product lineup consists of the core 7-Zip File Archiver (available as GUI File Manager and Console versions), with cross-platform support for Windows, Linux, and macOS. Developer tools include 7z.dll/7za.dll for application integration, the LZMA SDK (C/C++/C#/Java) placed in the public domain, and the lightweight 7zr.exe console tool. Add-on modules include SFX (self-extracting) modules and FAR Manager plugin. The Extra package bundles standalone console version, DLLs, and plugins. Legacy p7zip project has been superseded by native Linux builds.

Differentiator

Problem solved

Functional benefit

Brands

• 7-max: A program that increases the performance of applications affected by RAM latency by using large (2 MB) RAM pages instead of small (4 KB) pages. Provides 10-20% speed improvements on file compression programs like 7-Zip.
• LZMA SDK

Products and services

• 7-Zip File Archiver Main file archiver application providing high compression ratios in 7z format with LZMA/LZMA2 compression and supporting packing/unpacking for 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM, with unpacking-only support for 45+ additional formats. Distributed free for personal and commercial use on Windows, Linux, macOS, and BSD.
• 7-Zip File Manager Graphical file manager version of 7-Zip providing archive browsing, drag-and-drop support, context menu integration, and a file manager interface for archive compression and extraction operations on Windows.
• 7-Zip Console Version (Command-Line) Command-line version of 7-Zip that automates archive compression and extraction, supporting all compression and extraction features through command-line switches for scripting and pipeline use.
• LZMA SDK SDK providing C, C++, C#, and Java implementations of LZMA/LZMA2/XZ compression and decompression for embedding into third-party applications, installers, and firmware. Placed in the public domain for unrestricted use.
• 7z.dll / 7za.dll Libraries Dynamic-link libraries that expose 7-Zip archive functionality via COM-like interfaces, allowing developers to integrate 7z archive support into their own applications.
• 7-Zip Extra Package Standalone distribution package containing the 7-Zip console version, 7z DLL, and FAR Manager plugin for users who do not need the full installer.
• 7-Zip SFX Modules Self-extracting archive modules (7z.sfx, 7zCon.sfx, 7zS.sfx) that allow creating executable installers from 7z archives, enabling recipients to extract without installing 7-Zip.
• 7zr.exe Lightweight Console Executable Lightweight standalone console executable for 7z archive operations, a reduced version of 7z.exe designed for embedding or minimal installations.
• 7-Zip for Linux Command-line version of 7-Zip ported to Linux (x64, x86, ARM64, ARM), providing archive compression and extraction capabilities on Linux systems.
• 7-Zip for macOS Command-line version of 7-Zip ported to macOS (ARM64/x86-64), providing archive compression and extraction on Apple systems.

Quantifiable outcome

• 2-10% better compression ratio for ZIP/GZIP compared to PKZip and WinZip
• +4 more outcomes

Segments3 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature7 records

Partnerships

Five partnerships are on record, tiered core and minor.

• GitHub (ip7z organization)coreTechnology or IntegrationGitHub hosts the official 7-Zip releases repository and source code at github.com/ip7z/7zip. This is the primary modern distribution channel for releases and source code.
• p7zip Community ProjectminorOthersp7zip is a third-party Linux/Unix port of 7-Zip (command line version only) created by an independent developer. Note: The official 7-Zip now supports Linux natively, making p7zip largely obsolete.
• NSIS (Nullsoft Scriptable Install System)coreOEM/ Whitelabel/ Licensing PartnerNSIS uses LZMA compression (derived from 7-Zip) as its primary compression method for Windows installers. This is the most significant embedded use of 7-Zip/LZMA technology in commercial software distribution.
• Inno SetupcoreOEM/ Whitelabel/ Licensing PartnerInno Setup uses LZMA compression for its installers, enabling millions of software installations to use 7-Zip derived technology.
• AdobeminorOEM/ Whitelabel/ Licensing PartnerAdobe Flash Player (now discontinued) used LZMA compression for SWF files, leveraging 7-Zip derived compression technology.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• WinRAR: The most direct commercial competitor to 7-Zip. WinRAR is a paid Windows archiver supporting RAR and 7z formats, competing head-to-head in the desktop file compression category with overlapping format support.
• WinZip: Direct commercial competitor in the file archiver category. WinZip is a paid Windows/macOS utility competing on ZIP format compression where 7-Zip claims 2-10% better ratios.
• PeaZip: Free, open-source desktop file archiver that is a direct functional alternative to 7-Zip, offering similar format support (including 7z) and cross-platform availability without commercial licensing.
• Bandizip: Commercial Windows file archiver offering free and paid editions, competing directly with 7-Zip on compression speed, format support, and Windows Shell integration.
• PowerArchiver: Commercial Windows archiver with 7z format support, providing direct competition in the desktop compression market with encryption, cloud integration, and office-productivity features.
• B1 Free Archiver: Cross-platform free/commercial file archiver competing with 7-Zip in supporting the same set of archive formats across Windows, macOS, Linux, and Android.
• NanaZip: Modern fork of 7-Zip focused on Windows 11/10 with updated UI and integration, representing both a community continuation path and a direct competitive alternative based on the same LZMA technology.
• The Unarchiver: Free macOS-focused unarchiver that supports the same 45+ formats as 7-Zip and competes for the same cross-platform extraction user base, particularly on Apple platforms.
• StuffIt: Legacy commercial file archiver (originally Mac-focused) with longstanding format support (ZIP, SIT) that has historically competed with 7-Zip in the desktop compression category.
• Total Commander: File manager with built-in archive support via plugins (including 7z format), competing with 7-Zip File Manager for power-user workflows that combine file management and archive operations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/ip7z/7zip
• Xx.com/7zip
• Facebookfacebook.com/7zip-366470899834
• LinkedInlinkedin.com/company/moorea-zip

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about 7-Zip