What’s the license of Notepadqq?

Notepadqq is licensed under the GNU General Public License Version 3.

Is this project affiliated with Notepad++?

No. This project is independent from Notepad++ and doesn’t use any of its code. Notepadqq is inspired by Notepad++: this means that we try to reproduce its best traits, while not being afraid to make different choices on what we think can be improved.