3 ms·
IntelliJ is open source. It was once proprietary but these days is "open core". The Ultimate edition is the open source version of IJ with more plugins. Howeve
by thu2111 6y ago
IntelliJ is open source. It was once proprietary but these days is "open core".
The Ultimate edition is the open source version of IJ with more plugins. However the rebranded non-Java versions like Goland aren't open source, unless you consider the IJ base. They are the core language plugin(s) + integration and rebranding code.