NanaZip

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.

If you want to sponsor the development of NanaZip, please read the document of NanaZip Sponsor Edition. It's free for all NanaZip source code repository contributors.

In general, NanaZip Sponsor Edition is more like contributor's edition, but we provide a way to buy the honor and make someone look like a source code contributor, because NanaZip is always a community-friendly open-source project.

If you'd like me to add features or improvements ahead of time, please use paid services.

Besides NanaZip.org, NanaZip's official project pages are only hosted on GitHub, Microsoft Store, My Digital Life Forums, SourceForge, and Windows App Community.

Kenji Mouri

Features

• Inherit all features from 7-Zip 26.00, 7-Zip ZS and 7-Zip NSIS.
• Support the dark mode for all GUI components.
• Support the Mica effect on the main window. You will enjoy the full window immersive Mica for all GUI components if you are using dark mode with HDR disabled.
• Packaging with MSIX for modern deployment experience.
• Support the context menu in Windows 10/11 File Explorer.
• Provide 7-Zip execution alias for helping users to migrate to NanaZip.
• Support the Per-Monitor DPI-Aware for all GUI components.
• Support the i18n for GUI edition of Self Extracting Executable.
• Modernize message boxes and folder browsers.
• Provide the Smart Extraction feature.
• Provide the Open folder after extraction option.
• Provide the policy mechanism for enforcing settings (see Policies.md for details)
• Propagates Mark-of-the-Web to all files by default.
• Provide additional hash algorithms.
  • MD2 (Inherit from 7-Zip ZS, but reimplemented with Windows CNG API)
  • MD4 (Inherit from 7-Zip ZS, but reimplemented with Windows CNG API)
  • MD5 (Inherit from 7-Zip, but reimplemented with Windows CNG API)
  • SHA-1 (Inherit from 7-Zip, but reimplemented with Windows CNG API)
  • SHA-256 (Inherit from 7-Zip, but reimplemented with Windows CNG API)
  • SHA-384 (Inherit from 7-Zip, but reimplemented with Windows CNG API)
  • SHA-512 (Inherit from 7-Zip, but reimplemented with Windows CNG API)
  • ED2K (Implemented with Windows CNG API)
  • AICH (Implemented with RHash)
  • BLAKE2b (Implemented with RHash)
  • BTIH (Implemented with RHash)
  • EDON-R 224 (Implemented with RHash)
  • EDON-R 256 (Implemented with RHash)
  • EDON-R 384 (Implemented with RHash)
  • EDON-R 512 (Implemented with RHash)
  • GOST R 34.11-94 (Implemented with RHash)
  • GOST R 34.11-94 CryptoPro (Implemented with RHash)
  • GOST R 34.11-2012 256 (Implemented with RHash)
  • GOST R 34.11-2012 512 (Implemented with RHash)
  • HAS-160 (Implemented with RHash)
  • RIPEMD-160 (Implemented with RHash)
  • SHA-224 (Implemented with RHash)
  • SHA3-224 (Inherit from 7-Zip, but reimplemented with RHash)
  • SHA3-256 (Inherit from 7-Zip, but reimplemented with RHash)
  • SHA3-384 (Inherit from 7-Zip, but reimplemented with RHash)
  • SHA3-512 (Inherit from 7-Zip, but reimplemented with RHash)
  • Snefru-128 (Implemented with RHash)
  • Snefru-256 (Implemented with RHash)
  • Tiger (Implemented with RHash)
  • Tiger2 (Implemented with RHash)
  • BTIH (Implemented with RHash)
  • TTH (Implemented with RHash)
  • Whirlpool (Implemented with RHash)
  • XXH32 (Implemented with xxHash)
  • XXH64 (Implemented with xxHash)
  • XXH3_64bits (Implemented with xxHash)
  • XXH3_128bits (Implemented with xxHash)
  • SM3 (Implemented with GmSSL)
• Provide additional codecs. (Note: Decoder can be considered as decompression support, Encoder can be considered as compression support, and Archiver can be considered as archive format support)
  • Brotli (Decoder & Encoder & Archiver, inherited from 7-Zip ZS)
  • Fast-LZMA2 (Encoder, inherited from 7-Zip ZS)
  • Lizard (Decoder & Encoder & Archiver, inherited from 7-Zip ZS)
  • LZ4 (Decoder & Encoder & Archiver, inherited from 7-Zip ZS)
  • LZ5 (Decoder & Encoder & Archiver, Both inherited from 7-Zip ZS)
  • Zstandard (Decoder inherited from 7-Zip, Encoder & Archiver inherited from 7-Zip ZS)
  • NSIS (Decoder's NSIS script decompiling support, inherited from 7-Zip NSIS)
  • UFS/UFS2 file system image (Archiver, read-only, both big and little endian)
  • .NET Single File Application bundle (Archiver, read-only, extracting compressed files in the bundle are not supported)
  • Electron Archive (asar) (Archiver, read-only)
  • ROMFS file system image (Archiver, read-only)
  • ZealFS file system image (Archiver, read-only)
  • WebAssembly (WASM) binary file (Archiver, read-only)
  • littlefs file system image (Work In Progress) (Archiver, only block information can acquired)
• Provide additional 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 in Release builds prevents generating malicious code at runtime.
  • Block loading unexpected libraries from remote sources at runtime.
  • Enable Package Integrity Check.
  • Enable EH Continuation Metadata.
  • Enable Signed Returns.
  • Enable disabling child process creation for NanaZip CLI and Self Extracting Executables. (Except installer mode of Self Extracting Executables, which compiled binaries is not provided in the NanaZip MSIX package.)
• Various UI bug fixes and enhancements.

Differences between NanaZip and NanaZip Classic

NanaZip plans to have two distribution flavors called NanaZip and NanaZip Classic. Here are the differences between them.

• NanaZip (Modern)

  • Only MSIX packaged version.
  • Support the context menu in Windows 10/11 File Explorer.
  • Support the file associations.
  • Provide 7-Zip execution alias for helping users to migrate to NanaZip.
  • XAML-based GUI.

• NanaZip Classic (Work In Progress)

  • Only portable version which is suitable for Server Core, Windows PE, Windows RE, and Wine.
  • Don't have the context menu support.
  • Don't have the file associations support.
  • Don't have the 7-Zip execution alias support.
  • Win32 GUI.

[!CAUTION] NanaZip can be used as portable version if you use the official portable release package. It's designed for debugging/testing/development purpose and scenarios (a.k.a. Server Core, Windows PE, Windows RE, and Wine) really need portable version. But please note that some features is not available, such as context menu and file associations. Some issues will not be fixed if you are using NanaZip in portable mode.

[!CAUTION] We don't provide any support for users if they are using any non-official release packages, such as extracting the files from the MSIX package or copy from the NanaZipPackage project output. For example, if you are using the files extracted from the MSIX package of NanaZip like Scoop package manager does. We hugely recommend you to use the official release packages of NanaZip. For example, WinGet package manager uses NanaZip official release package to install NanaZip.

System Requirements

Here are the system requirements starting with NanaZip 6.0:

• Supported Operating Systems:
  • Windows 10, version 2004 (Build 19041) or later
  • Windows Server 2022 (Build 20348) or later
• Supported Platforms:
  • x86 (64-bit)
  • ARM (64-bit)

In general, NanaZip follows the 2025 bas