Skip to content
whatismyalternative

NSIS (Nullsoft Scriptable Install System)

Open source system for creating Windows installers

Visit NSIS (Nullsoft Scriptable Install System)

NSIS (Nullsoft Scriptable Install System) is an open source tool for creating Windows installers. It solves the problem of packaging and deploying software on Windows by providing a small, efficient, and script-based system that adds only about 34 KB of overhead to a full-featured installer. This makes it particularly suitable for internet distribution where file size matters.

The tool is script-based, allowing developers to write custom logic for complex installation tasks. It supports multiple compression methods including ZLib, BZip2, and LZMA. A plug-in system extends functionality for tasks such as web installation, HTTP downloading, file patching, and Windows API calls. The installer can be made multilingual with support for over 40 languages including right-to-left languages, and offers both classic and modern wizard interfaces. It is compatible with all major Windows versions from Windows 95 through Windows 11.

NSIS is aimed at software developers and system administrators who need to create Windows installers. It is completely free for any use. The compiler can also be built for POSIX platforms like Linux and BSD, though generated installers run only on Windows.

10 alternatives to NSIS (Nullsoft Scriptable Install System)

Ranked by how well each tool replaces NSIS (Nullsoft Scriptable Install System): shared features, audience, price and popularity.

  1. Inno Setup

    Inno Setup is an installer creation tool for Windows programs, distributed from jrsoftware

    Covers 0 of 15 key features.

    60 out of 100 match—

  2. InstallAware

    Windows Installer (MSI) authoring, compression, and repackaging tools for building setup

    Covers 0 of 15 key features.

    Free plan
    57 out of 100 matchContact sales

  3. Advanced Installer

    Windows installer authoring tool for installing, updating and configuring products

    Covers 0 of 15 key features.

    Free plan
    57 out of 100 match$33.25/mo

  4. CreateInstall

    Installer creation tool for Windows that presents the installation process as a sequence,

    Covers 1 of 15 key features.

    Free plan
    57 out of 100 matchContact sales

  5. IzPack

    Package once. Deploy everywhere.

    Covers 0 of 15 key features.

    Open source
    52 out of 100 match—

  6. InstallBuilder

    Cross platform installer creation and automatic update tool

    Covers 0 of 15 key features.

    49 out of 100 match—

  7. Silent Install Builder

    Your silent installer for any software.

    Covers 0 of 15 key features.

    43 out of 100 match$12.42/mo

  8. InstallForge

    The Free Setup Creator For Windows

    Covers 0 of 15 key features.

    Free plan
    41 out of 100 matchFree

  9. NTLite

    Customize and Debloat Windows ISO and Live Installs

    Covers 0 of 15 key features.

    Free plan
    40 out of 100 matchFree

  10. /n software

    The Net Tools Company.

    Covers 0 of 15 key features.

    38 out of 100 matchContact sales