EM-FCEUX

A web NES emulator.

Choose a gamearrow pointing right

arrow pointing leftReveal settings


PICTURE CONTROLS

Brightness
Contrast
Color
Gamma

NTSC EMULATION

NTSC Emulation*
Sharpness
Signal Noise

TV EMULATION

TV Emulation
Scanlines
Glow
Convergence

SYSTEM SETTINGS

Port 1
Port 2
Video System

* NTSC composite video.

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INPUT BINDINGS

Click 'Set' button to change bindings for an input. Click 'Clear' to remove the binding.

InputKeyboardGamepadOptions



PRESS A KEY OR GAMEPAD BUTTON

and will be bound to .

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EM-FCEUX

em-fceux is a web port of the FCEUX NES emulator.

INSTRUCTIONS

To play a game, select it game from the stack on the right. Add more games by dropping them on the window (formats: NES, ZIP, NSF). Remove a game by clicking X icon.

INPUTS

Inputs can be customized by clicking key bindings icon on the top menu. Defaults:

InputKey
Directional Pad (Controller 1)Arrow Keys
A Button (Controller 1)F
B Button (Controller 1)D
Select (Controller 1)S
Start (Controller 1)Enter
Reset SystemCtrl+R
Speed ThrottleTab
Select Save State0-9
Save Save StateF5
Load Save StateF7
Pause EmulationP
Single Frame Step\ (Backslash)
Exit Fullscreen ModeEsc

Use mouse to trigger Zapper.

SETTINGS

Reveal settings by clicking the pixelated triangle on the left. There are video and system settings, for example brightness, sharpness, color, NTSC signal emulation and PAL and NTSC system modes.

TROUBLESHOOTING

Low frame rate: Disable CRT TV emulation in settings. Also try fullscreen mode.

Game plays too fast/slow: Try changing to PAL or NTSC mode in the settings.

Other issues: Try with another browser, and if the issue persists, report a bug. Tested to work on latest versions of Firefox, Chrome/Chromium and Safari (March 2020).

Can't play on iPhone/Android: Touch input is not supported yet. Maybe you can help?

CONTACT AND CONTRIBUTING

Report bugs and feature requests in the issue tracker.

Contributions are welcome! The projects are: em-fceux (FCEUX port, "emulation core") and em-fceux-site (this site).

This site is a fork, adapted for the hosting of my (Wendel Scardua) ROMs.

The original site is tsone.kapsi.fi/em-fceux

By GNU GPL 2 license, the source of this fork is available at Github.

OTHER INFORMATION

Licensed under GNU GPL 2 excluding the built-in games. The games are distributed by permission from the authors.

The games and save data is stored locally in your browser only. The site has no tracking, analytics or cookies.

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Version: 1.0.3