It is usually deployed either in a Cloud and served over the web or locally on the desktop as Electron application. Theia IDE is not a 'box' product that can be just downloaded. More detailed instructions on installing extension from Visual Studio Marketplace can be found here Theia Install from the Visual Studio Marketplace:

Since it combines Spring Tools 4 and Eclipse release train repos, it is not recommended for manually installing Spring Tools 4. This will provide you the latest Spring Tools 4 together with the latest Eclipse release and can be used to always stay on top of the latest Spring Tools 4 and the latest Eclipse version.

In addition to those p2 repositories, we also provide an additional one: Select the main features you wish to install and proceed. Choose Install New Software in Eclipse and use this p2 repository URL: You can also use a p2 repository to install individual components of Spring Tools 4 into an existing Eclipse installation. Install Spring Tools 4 into an existing Eclipse (via a p2 repo) You can install Spring Tools 4 into your existing Eclipse installation using the Eclipse Marketplace. In order to install the Spring Tools 4 into an existing Eclipse install, you need the latest Eclipse release as a prerequisite (download the Eclipse IDE from here: ). Install Spring Tools 4 into an existing Eclipse (via the Marketplace) Double click and it will expand itself on disc. Note: For Windows, the download is a self-extracting JAR archive. To download the full featured Spring Tool Suite 4 distribution that has everything pre-installed, please go to: Spring Tool Suite 4 (the Eclipse-based distribution) Spring Tools 4 ready-to-use distribution package

the location configured via $.ls. in vscode's user or workspace settings.

It looks in these places and uses the first java executable found: The language server launcher will look for JVM to launch with. All the variants require at least a JDK11+ to be installed on your system as a prerequisite. This guides you through the various installation steps for the STS4 components on the different supported platforms (Eclipse, Visual Studio Code and Theia).

Spring boot tool suite download