Downloading Apache NetBeans 12.1

Apache NetBeans 12.1 was released on September 1, 2020. See Apache NetBeans 12.1 Features for a full list of features.

Apache NetBeans 12.1 is available for download from your closest Apache mirror.

Officially, it is important that you verify the integrity of the downloaded files using the PGP signatures (.asc file) or a hash (.sha512 files). The PGP keys used to sign this release are available here.

Apache NetBeans can also be installed as a self-contained snap package on Linux.

Known issue on macOS Big Sur

Apache NetBeans 12.1 fails to run on Big Sur.

Workaround: edit netbeans.conf and uncomment and set the JDK home path in the netbeans_jdkhome variable.

% ls /Library/Java/JavaVirtualMachines
adoptopenjdk-11.jdk	adoptopenjdk-8.jdk

% sudo vi /Applications/NetBeans/Apache\ NetBeans\

Deployment platforms

Apache NetBeans 12.1 runs on JDK LTS releases 8 and 11, as well as on JDK 14, i.e., the current JDK release at the time of this NetBeans release.

Building from source

To build Apache NetBeans 12.1 from source you need:

  1. A distribution of OpenJDK 8 or 11.

  2. Apache Ant 1.10 or greater (

Once you have everything installed then:

  1. Unzip in a directory of your liking.

  1. cd to that directory, and then run ant to build the Apache NetBeans IDE. Once built you can run the IDE by typing ./nbbuild/netbeans/bin/netbeans

Community approval

As in any other Apache Project, the Apache NetBeans Community approved this release through the following voting processes in our mailing lists :

Earlier releases

Please visit the Apache NetBeans Download page for further details.