You can download the JE editor for free after you accept the following license.
All components of JE are distributed under the terms of the GNU General Public License. The main points as I understand them are
Additionally, I impose this restriction.
Other licenses are available on request.
If you have a modern Java version, you can just download the program archive and double click on it to start JE. Alternatively, try one of these commands in a command line
java -jar je.jar java -cp je.jar edit jview /cp je.jar edit
You may use any Java version. Java is available for other operating systems from Sun.
For Windows, you can use the simple Windows Installer. This will work for Microsoft Java or any other JRE. You need to be administrator to install this file.
You will find icons in the start menu. It will also create a batch file in your Windows directory, which can be used in any command line. To start the editor from a command line, enter
This is a nice way to try JE. The program will always be kept at the most recent release. However, you cannot start JE from a command line with this option. Also, you have to install Java Web Start (included in Java 1.4), and you must use Java 1.2 or better.
For more details, look here.
The source is available with the same license. If you want to include a JE panel into other open source projects, you may do so, if you cite me. Look into the file EditorTest.java for a sample.
In case you have problems with the download, please contact me.