The primary site for GeoGebra's source code is https://dev.geogebra.org/svn/trunk/geogebra/ which is a read-only Subversion repository. We maintain a copy of it at https://github.com/geogebra/geogebra.

Please read https://www.geogebra.org/license about GeoGebra's licensing. A copy of this license should also be found in the file desktop/src/nonfree/resources/org/geogebra/desktop/_license.txt.

To learn more on development of GeoGebra (including suggested compilation steps) please visit https://dev.geogebra.org/.

To start the web version from command line, run

./gradlew :web:runSuperdev

This will start a development server on your machine where you can test the app. If you need to access the server from other devices, you can specify a binding address

./gradlew :web:runSuperdev -Pgbind=A.B.C.D

where A.B.C.D is your IP address. Then you can access the dev server through http://A.B.C.D:8888. You can also run ./gradlew :web:tasks to list other options.

To start the desktop version from command line, run

./gradlew :desktop:run

You can also run ./gradlew :desktop:tasks to list other options.

• Open IntelliJ. If you don't have IntelliJ on your computer yet then you can download and install it from here
• In the menu select File / New / Project from Version Control / Subversion
• In the new window add the following path: https://git.geogebra.org/ggb/geogebra.git
• Click on ‘Checkout’, select your preferred destination folder, select Java 1.8 as the SDK, click on OK and wait…
• After the project is checked out, select the root folder of the project, open the Run Anything tool (Double ^ on Mac) and run the following command: ./gradlew :web:runSuperdev
• After a minute or two the GWT UI will appear
• After the Startup URLs are loaded on the UI, select the app that you wish start. For example, if you select graphing-canary.html and click on Launch Default Browser then the Graphing Calculator app with the newest features will load and start in your default browser