A simple yet complete gtk3 interface for https://github.com/jbruchon/jdupes
You will need python3 and the pygobject library available from pip.
sudo pip3 install pygobject
Make the script executable: chmod +x jdupes-gui
Then run ./jdupes-gui
The application is currently fully functional with no known bugs.
A minor inconvenience is caused by the fact that the script is single-threaded. This causes the application to seemingly hang when running long jobs like searching through large folders or deleting large batches of files. Please be patient, it is still working.