This is a simple mod manager I created.

If needed, all you need to do is locate the No Man's Sky folder (for example C:\Program Files (x86)\Steam\steamapps\common\No Man's Sky).

It should work with both the Steam version and the GOG version but has only been tested with the Steam version.

Place it anywhere and navigate the No Man's Sky folder

1.4.5
Mods can now be deleted using the DELETE key

1.4.2
Removed automatic detection of the No Man's Sky installation folder
Settings now persist when the program is moved

1.4
Added drag and drop feature for mod installation
Added automatic detection of the No Man's Sky installation folder

1.3
Updated to work with the new 1.1 update of No Man's Sky

1.2
Fixed error if NMS crashes and NMSE wasn't running

1.1
Fixed starting steam version without NMSE
Added save backup feature
Added automatic shadercache folder removal
Added auto restart if NMS crash at NMSE