Emulators

This is a list of NES emulators.

Commercial

Emulator name	Author	Platform(s)	Ports and/or other details
acNES	Nintendo	GameCube, Game Boy Advance	Used for Animal Crossing, e-Reader, and Classic NES Series. The name "acNES" is unofficial, as Nintendo has not released this emulator as a distinct product. Information from TCRF indicates that it may be called "QFC".
Virtual Console	Nintendo	Wii/Wii U/3DS	Most games cost 500 Nintendo Points in Wii Shop Channel
PocketNES	Atlus, Jaleco, Konami	Game Boy Advance, Nintendo DS	source: Wikipedia

Popular

These are commonly used or well-established.

Emulator name	Author	Platform(s)	Ports and/or other details
BizHawk	Multiple authors	Win32, MacOS
FCE Ultra GX	Tantric	Wii, GameCube
FCEUX	Anthony Giorgio / Mark Doliner	Win32, Linux
FCEUXD SP	sp	Win32
Jnes	Jabosoft	Win32
nemulator	James Slepicka	Win32 (Vista/7)
nesemu2	holodnak	Win32, OS X, Linux	github source
NESten	TNSe	Win32
NEStopia	Martin Freij	Win32	Linux, MacOS
Nestopia UE	rdanbrook	Linux, BSD, Win7+	a.k.a. Nestopia Undead Edition. Contains bugfixes/etc. Windows binaries are available at Sourceforge or at EmuCR
Nintendulator	Quietust	Win32	Nintendulator DX (by thefox) for an even more-improved debugger
NO$NES	Martin Korth	Win32
PocketNES	loopy, FluBBa, and Dwedit	Game Boy Advance	Updates on Dwedit's board
RockNES	Zepper (formerly Fx3)	Win32
UberNES	M \ K Productions	Win32
VirtuaNES	Norix	Win32

Under development

The following is a list of NES emulators that are supposedly under development, who their authors are, relevant home pages/sites, and the source of the announcement (direct or indirect).

Emulator name	Author	Platform(s)	Ports and/or other details
NESICIDE (version 1)	NESICIDE	Win32
NESICIDE (version 2)	NESICIDE/essial	Win32/64, Linux32/64, MacOS
FPGA NES	Ludde	FPGA (hardware)
VeriNES	jwdonal	FPGA (hardware)	Announcement
FPGA NES	kevtris	FPGA (hardware)
FPGA NES	Dan Strother	FPGA (hardware)
NESFaCE	6T4	Win32	Announcement
kindred	Overload	Win32	Announcement
?	allthatremains	Win32	Announcement
?	amin2312	Flash	Announcement
ModNES	Petruza	Portable, mainly MacOS & Win32	Announcement
A/NES	Morgan Johansson	AmigaOS	Announcement
puNES	FHorse	Linux32/64, Win32/64	Announcement
famique	sahib	Mac OS X, Win32, Linux	Announcement
FooNES	aphex	Win32	Announcement
nesemu1	Bisqwit	libSDL (portable), testing under Linux	Announcement
MoarNES	miker00lz	Win32	Announcement
jaNES	crudelios	Win32	Announcement
?	neet	?	Announcement
?	foobaz	Java	Announcement
?	MottZilla	?	Announcement
?	runaway pancake	?	Announcement
?	Vegenad	?	Announcement
?	johnathonrh	?	Announcement
Yanese	Anes	Win32	Announcement
?	nesemuguy	?	Announcement
?	Coldberg	?	Announcement
?	pops	?	Announcement
?	beannaich	?	Announcement
?	windwakr	?	Announcement
?	JuniorZ	?	Announcement
?	NesHackR	?	Announcement
AwesomeNES	Snaer	libSDL (portable)	Announcement
?	BeTheDuck	?	Announcement
?	Luke	?	Announcement
?	The Lord	?	Announcement
?	essial	?	Announcement
?	JamesK89	?	Announcement
?	yaazz	OS X	Announcement
?	blanham	OS X	Announcement
?	magicphenix	?	Announcement
?	happymaomao	?	Announcement
?	someone_somewhere	?	Announcement
?	Undubbed	?	Announcement
?	Muchaserres	?	Announcement
?	takeda	?	Announcement
?	albailey	?	Announcement
?	CaptainMuscles	?	Announcement
?	hatorijr	?	Announcement
?	tanoatnd	?	Announcement
?	max_sweat	?	Announcement
?	jjpeerless	?	Announcement
?	Cloudy	?	Announcement
?	meatloaf69	?	Announcement
?	parth	FPGA (hardware)	Announcement
?	oRBIT2002	?	Announcement
?	Elessar	?	Announcement
?	cmoh89	?	Announcement
HDNes	mkwong98	Win32	Announcement
?	ehguacho	?	Announcement
?	nop	Java	Announcement
MSE	Alegend45	?	Announcement
?	emu_enthusiast	?	Announcement
MahNES	HLorenzi	Win32	Announcement
?	haydenmuhl	?	Announcement
?	urbanspr1nter	?	Announcement
Fergulator	fergus_maximus	Mac OS X or X Windows	Announcement
?	ermular	Win32	Announcement
Kryptonware	rubenhbaca	Java	Announcement
?	alexwy	?	Announcement
?	caiiio	?	Announcement
?	miguelsfp	Win32	Announcement
?	ember	FPGA (hardware)	Announcement
?	ninjis	?	Announcement
?	submarine600	PC-8801	Announcement
Yane	roku6185	libSDL (portable), testing under Linux	Announcement
VPNES	x0000	Win32	Announcement
Pretendo	proxy	Linux/BeOS/Win32	Announcement
?	samfoo	?	Announcement
?	LightStruk	?	Announcement
Nezulator	Zelex	JavaScript	Announcement
EMUya	Zelex	Ouya	Announcement
?	dreampeppers99	?	Announcement
?	Skypher	?	Announcement
?	graham	Javascript	Announcement
?	ArsonIzer	Java	Announcement
?	SuperFXMaster	FPGA (hardware)	Announcement
?	Choz	Win32 w/ SDL	Announcement
?	sronsse	?	Announcement
?	Emu6502Writer	?	Announcement
?	fred	?	Announcement
?	janzdott	?	Announcement
?	d15ea5e	?	Announcement
?	mrhyde	?	Announcement
?	codeblox	?	Announcement
FC87	Boolean	SDL (Win32, GNU/Linux)	Announcement
phibiaNES	nIghtorius	Win32	Announcement
?	Choz	?	Announcement
nintengo	nwidger	Go w/ libSDL
ffnes	rockcarry	Win32	Announcement
WebNES	peteward44	Javascript	Announcement / Live demo
O-Nes-Sama	Fumarumota, aLaix	SDL2 (Win32, GNU/Linux)	Announcement
Nintaco	zeroone	Java	Announcement
?	austere	?	Announcement
cfxnes	jonyzz	Javascript/CoffeeScript	Announcement / Live demo
?	mreiland	?	Announcement
?	daroou	Win32	Announcement
fogleman/nes	Michael Fogleman	Go with Go/GL and PortAudio	Medium article
?	RobertLoggia	?	Announcement
nesalizer	Ulfalizer	libSDL (portable), tested on Linux
?	NewDietCoke248903	?	Announcement
?	imid	Win32/.NET	Repeated questions/details on NESdev IRC channel
?	mreiland	Linux (?)	Announcement
nSide	hex_usr	?	Fork of byuu's higan-nes. Announcement
?	DarylTechNES	?	Announcement
HalfNES	Grapeshot	Java	Github source
?	thomson	?	Announcement
?	Feuerwerk42	FPGA (hardware)	Announcement
Mesen	Sour	Win32/.NET	Announcement / Source
?	fspinolo	?	Announcement
?	DaNES	?	Announcement
?	charrli	?	Announcement
?	amhndu	?	Announcement
?	colinvella	?	Announcement
?	Alyosha_TAS	??	Announcement