Install4j Overview
install4j is a multi-platform installer builder for Java applications from ej-technologies, available for Windows, macOS, and Linux. It lets developers create native-looking installers and application launchers for desktop Java programs, so end users get a familiar setup experience on each operating system rather than a generic archive. From a visual environment you define the install flow, screens, actions, and file sets, and install4j produces single-file installers for each target platform, optionally bundling a Java runtime so users do not need to install one separately. It generates native launchers with custom icons, supports auto-update functionality, code signing, and silent or unattended installation, and integrates with build tools and continuous-integration pipelines for automated packaging. It is a commercial product offered with a free trial. The full offline installer holds the complete application, so it sets up on a machine with no internet connection. This page links to the official install4j download.