JHipster recommends that normal users install with npm. The npm is a package manager from Node.js, used to install various software. It is the world's largest software repository, where you will find thousands of pieces of open source software, in the form of packages. If npm is not installed, just go to the Downloads section of the Node site (https://nodejs.org/en/download) and install the latest 64-bit Long Term Support (LTS) version, because the non-LTS version is not supported by JHipster.
Once npm is installed, run the following command to install the JHipster package from the command line:
npm install -g generator-jhipster
JHipster uses another tool, named Yeoman (http://yeoman.io/), to generate the application code, which is installed along with the JHipster Node package. After creating an application, JHipster provides an option to build it with either Maven or Gradle. For this, JHipster will install the required wrappers for Maven and Gradle, so nothing is required explicitly, especially for building an app.
Local installation of JHipster can also be done with Yarn, another package manager for installing software. The process of installing JHipster with Yarn is almost identical to that of npm.