NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution.




Inno Setup is described as 'Free installer for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability' and is a very popular software installer in the os & utilities category. There are more than 50 alternatives to Inno Setup for a variety of platforms, including Windows, Linux, Mac, BSD and PortableApps.com apps. The best Inno Setup alternative is NSIS, which is both free and Open Source. Other great apps like Inno Setup are Advanced Installer, WiX, Wix# and RayPack Studio.
NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution.




Advanced Installer is a powerful and easy to use setup authoring tool which offers full Windows Installer support and more. You can configure every aspect of your installer through a simple graphical user interface or through its command line.


The Windows Installer XML (WiX) is a toolset that builds Windows installation packages from XML source code. The toolset supports a command line environment that developers may integrate into their build processes to build MSI and MSM setup packages.

RayPack Studio provides a set of software products and components for professional enterprise software packaging. Next to software packaging and virtualization, RayPack Studio considers all packaging-related tasks: conflict and compatibility checks of software applications and...




Powerful simple-to-use application to generate stable and multi-platform installers. Its intuitive user interface and exceptional ease of use makes it very easy to build complex desktop or web installers with large amounts of files.




InstallShield is designed to enable development teams to be more agile, collaborative and flexible when building reliable InstallScript and Windows Installer (MSI) installations for PCs, servers, Web and virtual applications.


Setup Factory Software Installer Builder for Windows. Advanced installer builder makes software installation programs for Windows. Award winning. Easy to Use.

DeployMaster is the no-nonsense software installer builder from Just Great Software. Deliver your applications to customers and prospects with a good first impression. Easy to use for both the developer and the end user.
install4j is a powerful multi-platform Java installer builder that generates native installers and application launchers for Java applications.



InstallForge is a very easy-to-use and flexible tool for creating fast installation packages for Windows.




If you want a scriptable installer with script syntax, NSIS is great and very flexible with strong community support.