Project files for Notepad++?

Solution 1:

No need for plugin. And NPP does this good and more. So no need to go to other editor.

Go to View → Project → Project Panel n

See more details here

Solution 2:

Project Management/workspace

Click View -> Project -> Project Panel n

where n is 1, 2 or 3. Each panel for each workspace.

Solution 3:

Notepad++ has a project-management tool but its not very effective. Creating and deleting files is a pain, so the only things you can do with it is opening and managing of files.

But, there is a solution aka the Explorer plugin.

Link to the explorer plugin (You can also find it in your plugin manager)

It is a file manager and when coupled with the in-built project-management tool it is very effective.