Here's a procedure for setting up IntelliJ IDEA.
See IDE setup for an alternative, using Gradle.

Installation and configuration

  1. Go to
  2. Choose Community (direct download link for Windows:
  3. Install IntelliJ IDEA (Next, Next, Next; the default options are fine)
  4. Launch IntelliJ IDEA
  5. On the Welcome screen, choose New Project
  6. Name: freeplane-scripting
  7. Language: Groovy
  8. Build system: IntelliJ
  9. JDK: if none detected, select Download JDK and choose version 17. Any Vendor: will do, e.g. Eclipse Temurin ...
  10. Groovy JDK: choose Specify Groovy SDK home and navigate to your Freeplane installation directory then to plugins and select org.freeplane.plugin.script; confirm with OK (e.g. C:\Program Files\Freeplane\plugins\org.freeplane.plugin.script - you can copy-paste)
  11. Click Create
  12. Once created, go to File->Project structure (Ctrl+Alt+Shift+S)
  13. Then to Libraries, and in the middle pane (above groovy-#.#.#) click + > Java
  14. Navigate to your Freeplane installation directory and select freeplanelauncher.jar (e.g. C:\Program Files\Freeplane\freeplanelauncher.jar - you can copy-paste)
  15. Confirm with OK the message "Library 'freeplanelauncher' will be added to the selected modules."
  16. In the far-right pane click + (above freeplanelauncher.jar)
  17. Navigate to your Freeplane installation directory > core > org.freeplane.core, select lib and confirm with OK (e.g. C:\Program Files\Freeplane\core\org.freeplane.core\lib - you can copy-paste)
  18. And again + > Freeplane installation > plugins > org.freeplane.plugin.script, select lib and confirm with OK (e.g. C:\Program Files\Freeplane\plugins\org.freeplane.plugin.script\lib)
  19. Close the Project Structure window with OK at the bottom

The installation is done. You are ready to start creating your first script.

Script example

In IntelliJ IDEA, right-click on the (blue) folder src > New->Groovy Script and in the dialog write the name hello.

  • In the file (right-hand pane), start writing def c = ScriptUtils. A drop-down will appear
  • Choose the (first) entry pointing to org.freeplane.plugin.script.proxy. It will add a line at the top import org.freeplane.plugin.script.proxy.ScriptUtils
  • Continue writing in line 3. Put a dot after ScriptUtils and wait for a drop-down to appear. Select c() (with Down) and confirm with Enter
  • Enter to the next line, then write def node = ScriptUtils.n and wait for a drop-dwonto appear with node() as the first item - confirm it with Enter
  • In a new line type c.stat and select statusInfo. You can use Down Enter or your mouse
  • Then type = "Hello. Current node id: ${}
  • Finally, copy the path to your src folder, by selecting it (in the left-hand pane) and pressing Ctrl+Shift+C

Verification in Freeplane

  • In Freeplane, open Tools->Preferences… (Ctrl+Comma) and go to Preferences…->Plugins->Scripting->Script search path (see tooltip)
  • Paste your path to src (something like C:\Users\<User>\IdeaProjects\freeplane-scritping\src) and confirm with OK
  • Restart Freeplane
  • Go to Tools->Script->Hello to run it
  • Verify in the status bar that you can see Hello. Current node id: ID_#######

Bonus - non-Freeplane Groovy script

In Intellij IDEA, you can also write and execute regular Groovy scripts, not only scripts meant for Freeplane. Here's an example.

  • Right-click on your (blue) src > New->Groovy Script and give it a name, e.g. currentWeather
  • Copy and paste the code
import groovy.json.JsonSlurper

// set your location
float latitude = 50.0
float longitude = 20.0

// get the text from the web
def link = "${latitude}&longitude=${longitude}&current_weather=true"
// print it so that you can click on the link to be opened in your web browser

// query OpenMeteo for the current weather information
def urlCurrentWeatherInLocation = new URL(link)
def textReturnedFromOpenMeteo = urlCurrentWeatherInLocation.text

// uncomment the next line (and add an import for JsonOutput) to print the returned text

// convert text to a HashMap
def mapFromJson = new JsonSlurper().parseText(textReturnedFromOpenMeteo)

// print the interesting bits
println('-' * 45)
println("  Current temperature (at ${mapFromJson['latitude']} ${mapFromJson['longitude']}): ${mapFromJson['current_weather']['temperature']}")
println('-' * 45)
  • Run it with Ctrl+Shift+F10