JDK ManagerDownloadWindows-first Java version manager
JDK Manager helps you discover installed JDKs, switch Java versions on Windows, fix PATH and JAVA_HOME issues, and manage multiple JDK versions with a Rust CLI and desktop app.
Why developers search for JDK Manager
If you need a Java version manager for Windows, you usually want one of three things: a fast way to switch Java versions, a clean way to manage multiple JDKs, or a safer way to fix JAVA_HOME and PATH when they drift out of sync. JDK Manager is built specifically for those workflows.
Find Adoptium, Corretto, Zulu, BellSoft, GraalVM, Oracle JDK, and other installations without hunting through Program Files or the registry yourself.
Use a Rust CLI or desktop UI to activate the right JDK version for the project you are working on, without manual environment-variable edits.
Run diagnostics to see why java, javac, JAVA_HOME, or PATH are wrong and get clear guidance for repairing the setup.
Download and install
The installer gives you the desktop app, optional CLI access, and a cleaner way to manage JDKs than manual registry edits or environment-variable copy/paste.
jdkman scan --auto-addFound existing JDKs and imported them as aliases for safer switching.
jdkman use java21Updates JAVA_HOME and PATH for the active Windows user environment.
jdkman doctorExplains what is wrong when java, javac, PATH, or JAVA_HOME are mismatched.
Search guides
These pages target the most common Windows Java setup problems and connect them back to the installer, CLI, and desktop app.
A practical guide for moving between Java 8, 11, 17, and 21 without breaking your terminal or build tools.
Read guideLearn the clean mental model for Java environment variables and how to repair mismatches when java resolves incorrectly.
Read guideSee the workflow for keeping legacy and modern Java projects side by side on one Windows machine.
Read guideStart with the right page
Whether you searched for a JDK manager for Windows, a way to switch JAVA_HOME, or a cleaner path setup for multiple Java projects, these are the most useful next steps.