BNSF/MacOS
A NSF player for the Macintosh, based on BNSF for DOS by Fx3.
HardNES
External player for the format, with pictures and information by the creator.
NEZamp
NSF plugin for Winamp that supports many on-cart sound producing devices in Famicom carts.
NSF Collection
Specification, information, players and links relating to the format.
NSFten
Player for Windows, includes information, downloads and files.