Nullsoft Install System

Nullsoft Install System 3.13

A professional open source system to create Windows installers

  • By Nullsoft and Contributors
  • Open Source
  • Updated Sep 27, 2026
Download for Windows

About Nullsoft Install System

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.
Being a user's first experience with your product, a stable and reliable installer is an important component of successful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software.
NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.

What's new in 3.13

F.1.1 Changelog

F.1.1.1 Minor Changes

  • Fixed nsExec::ExecToLog crash (bug #1323)

F.1.1.2 Translations

  • Updated Italian and Korean

F.1.1.3 Build System

  • TARGET_ARCH is used as the default makensis target (patch #314, bug #1294)

Full release notes »

Technical details

PublisherNullsoft and Contributors
Version3.13
Release date2026-09-27
Licensezlib/libpng, bzip2, CPLv1
Installer typenullsoft
Architecturex86
Package IDNSIS.NSIS

Install Nullsoft Install System from the command line

Install with Windows Package Manager
winget install --id=NSIS.NSIS -e
Update to the latest version
winget upgrade --id=NSIS.NSIS -e
Uninstall
winget uninstall --id=NSIS.NSIS -e
Silent install with the offline installer
"download" /S

installernsisnullsoftsetup

Nullsoft Install System version history

  • 3.12
  • 3.11
  • 3.10
  • 3.09
  • 3.08
  • 3.07
  • 3.06.1

Frequently asked questions

Is Nullsoft Install System free?

Yes. Nullsoft Install System is free and open-source software released under the zlib/libpng, bzip2, CPLv1 license.

What is the latest version of Nullsoft Install System?

The latest version is 3.13, released on Sep 27, 2026.

Is it safe to download Nullsoft Install System?

The download button links to the official installer published on sourceforge.net, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with db9a1038bbc0e53fef24f423fd609979bd578e942f1be1198db186d1c42652a3.

Which Windows versions does Nullsoft Install System support?

Nullsoft Install System runs on Windows and is available for 32-bit (x86) systems.

How do I install Nullsoft Install System silently?

Run the offline installer with "download" /S, or install it with Windows Package Manager: winget install --id=NSIS.NSIS -e --silent.

How do I uninstall Nullsoft Install System?

Open Settings › Apps › Installed apps, find Nullsoft Install System and select Uninstall. From the command line, run winget uninstall --id=NSIS.NSIS -e.