NanaZip Save

The 7-Zip derivative intended for the modern Windows experience

Project README

NanaZip NanaZip

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ContextMenu MainWindow

NanaZip is an open source file archiver intended for the modern Windows experience, forked from the source code of well-known open source file archiver 7-Zip.

All kinds of contributions will be appreciated. All suggestions, pull requests and issues are welcome.


  • Inherit all features from 7-Zip 22.01.
  • Packaging with MSIX for modern deployment experience.
  • Support the context menu in Windows 10/11 File Explorer.
  • Enable NSIS script decompiling support for the NSIS archives. (Merged from 7-Zip NSIS branch.)
  • Provide 7-Zip execution alias for helping users to migrate to NanaZip.
  • Support the Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard codecs. (Merged from 7-Zip ZS branch.)
  • Support the Per-Monitor DPI-Aware for all GUI components.
  • Support the i18n for GUI edition of Self Extracting Executable.
  • Integrate the following HASH algorithms to NanaZip from RHash and xxHash.
    • AICH
    • BLAKE2b
    • BTIH
    • ED2K
    • EDON-R 224, EDON-R 256, EDON-R 384, EDON-R 512
    • GOST R 34.11-94, GOST R 34.11-94 CryptoPro
    • GOST R 34.11-2012 256, GOST R 34.11-2012 512
    • HAS-160, RIPEMD-160
    • SHA-224
    • SHA3-224, SHA3-256, SHA3-384, SHA3-512
    • Snefru-128, Snefru-256
    • Tiger, Tiger2
    • TTH
    • Whirlpool
    • XXH3_64bits, XXH3_128bits
  • Enable several security mitigations.
    • Enable Control Flow Guard (CFG) to all target binaries for mitigating ROP attacks.
    • Mark all x86 and x64 target binaries as compatible with Control-flow Enforcement Technology (CET) Shadow Stack.
    • Strict handle checks at runtime to block the use of invalid handles.
    • Disable dynamic code generation prevents generating malicious code at runtime.
    • Block loading unexpected libraries from remote sources at runtime.
    • Enable Package Integrity.
    • Enable EH Continuation Metadata.
    • Enable Signed Returns.

System Requirements

  • Supported OS: Windows 10 Version 2004 (Build 19041) or later
  • Supported Platforms: x86, x86-64(AMD64) and ARM64.

Download and Installation

Here are some available installation methods for NanaZip.

Microsoft Store

This is the recommended way to install NanaZip.

Search and install NanaZip in Windows Store for stable release, and NanaZip Preview for preview release.

Also, you can also click the Microsoft Store link you needed.

MSIX Package

You also can download the MSIX Package in GitHub Releases.

After you have downloaded the MSIX Package, you can double click to install it, or you can execute the following command in the Command Prompt which is run as the Administrator.

PowerShell -NoLogo -NoProfile -NonInteractive -InputFormat None -ExecutionPolicy Bypass Add-AppxPackage -DeferRegistrationWhenPackagesAreInUse -ForceUpdateFromAnyVersion -Path The path of the MSIX package

P.S. All needed dependencies are included in the MSIX Package of NanaZip because we known that it's very difficult for users who do not have access to the store to get our dependency packages, and we want to be robust and deployable everywhere.

Known issues

  • If you can't find NanaZip in the context menu, please restart all File Explorer processes via Task Manager.
  • Due to the issues in Desktop Bridge file system virtualization, you are unable to use NanaZip in the Safe Mode of Windows.
  • Due to the policy from Microsoft Store, NanaZip is unable to disable Desktop Bridge file system virtualization, so the file operations in %UserProfile%/AppData will be redirected in Windows 10, and file operations in directories other than Local, LocalLow and Roaming in %UserProfile%/AppData will still be redirected in Windows 11.
  • Due to the Microsoft Store limitations, NanaZip 1.2 and later won't support languages not mentioned in

Development Roadmap

  • 1.0 (December 8, 2021)
    • Modernize the build toolchain with MSBuild for using MSIX packaging and parallel compilation support.
    • Use VC-LTL 5.x toolchain to make the binary size even smaller than the official 7-Zip because we can use ucrtbase.dll directly and the optimizations from modern compile toolchain.
    • Add the context menu support in Windows 10/11 File Explorer.
    • New icons and minor UI tweaks.
    • Merge NSIS script decompiling support from 7-Zip NSIS branch. (Suggested by alanfox2000.)
    • Provide 7-Zip execution alias for helping users to migrate to NanaZip. (Suggested by AndromedaMelody.)
    • Add support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard from 7-Zip ZS branch. (Suggested by fcharlie.)
  • 1.1 (March 17, 2022)
    • Add assembly implementations from 7-Zip back for improving performance.
    • Reimplement the about dialog with Task Dialog.
    • Modernize the message boxes with Task Dialog.
  • 1.2 (May 11, 2022)
    • Add Per-Monitor DPI-Aware support for Self Extracting Executables.
    • Modernize the i18n implementation and migrate language files from .txt to .resw. (Suggested by Maicol Battistini.)
    • Add i18n support for Self Extracting Executables.
  • 2.x Series (2023 Q3)
    • Add the UI stack based on XAML Islands which is used in NanaZip.
    • Modernize the UI with XAML Islands with the Windows 11 control style, Mica material, dark and light mode support.
    • Full High DPI and Accessibility support in all UI components.
    • Migrate configurations from registry to json. (Suggested by AndromedaMelody.)
    • Try to modernize the core implementation.
    • Try to Windows Runtime component for interoperability.
    • Provide NanaZip Installer for simplify the deployment.
  • 3.x Series (2024 Q3)
    • Try to add option for save file names with UTF-8 in 7z archives.
    • Add batch task support. (Suggested by 刘泪.)
    • Try to design the new UI layout. (Suggested by wangwenx190.)
    • Try to add option for using Windows Imaging API (WIMGAPI) backend to make better creation and extraction support for wim archives, also add creation and extraction support for esd archives.
    • Try to add pri archive extracting support.
    • Try to add smart extraction.
    • Try to add language encoding switching support for file names in File Manager. (Suggested by 刘泪 and zjkmxy.)
    • Try to add deleting source after archiving support. (Suggested by OrionGrant.)
    • Try to add an option when extracting an archive to open the folder where you extracted the files, like WinRAR. (Suggested by maicol07.)
    • Try to add ISO creation support.
  • 5.x Series (2025 Q3)
    • Currently no new feature plans for this series.
  • Unpredictable Future Series (T.B.D.)
    • Try to create a new archive file format optimized for software distribution and image backup and restore.
      • Keeping metadata provided by file system.
      • File referencing support.
      • Integrity verification support.
      • Differential support.
      • Recovery record support.
      • Provide lightweight SDK for authoring and consuming.
    • Try to contribute recovery record support for 7z archives to 7-Zip mainline. (Suggested by SakuraNeko.)
    • Try to port NanaZip to Linux.
      • Try to port MegaUI (an developing lightweight UI framework created by mingkuang, under internal developing at the current stage, will be open source if the work has done) framework to Linux.
      • Try to create MinLin (a.k.a. Minimum Linux, a distro intended for helping publish distroless binaries and provide some Windows API functions as static libraries for having a lightweight platform abstraction layer) project because I think NanaZip should support distroless environment for reducing time wasting for compiling for different distros.
    • After porting NanaZip to Linux, accept contributions from community folks for other POSIX platforms (e.g. FreeBSD) and macOS support.
    • Try to add extension for Windows File Explorer for give user immersive experience like builtin zip file support in Windows. (Suggested by SakuraNeko and shuax.)


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