JS7800: Atari 7800 Emulator

Click

Settings to view current keyboard mappings.

Click

Help for detailed usage instructions.

Load a cartridge using the drop-down menu or buttons below (you can also drag and drop a local file or remote file link onto the emulator).

Settings

Display Settings

The following settings are used to control the screen display.

Screen size:

Aspect ratio:

Fullscreen:

Palette:

Apply filter:

Keyboard Mappings

Click on the red box near a control to select it for mapping.

Once selected, press the key you would like to map to the control.

Controller 1

Controller 2

Console Buttons

SELECT

RESET

PAUSE

Gamepad Compatibility

This page provides the ability to test compatibility with connected gamepads.

Connect gamepads and test if they are mapped correctly (by pressing buttons, D-pad, etc.).

Gamepad:

Mapping:

Controller 1

Gamepad:

Mapping:

Controller 2

Console Buttons

SELECT

RESET

PAUSE

High Score Settings

The following settings control high score persistence.

Save scores:

Save location:

Local fallback:

Advanced

The following settings provide the ability to configure advanced features.

Expansion module (XM):

Frame skipping:

Vertical sync:

Help

JS7800: JavaScript Atari 7800 Emulator

by raz0red

JS7800 is an enhanced JavaScript port of the ProSystem Atari 7800 emulator that was originally developed by Greg Stanton

Atari 7800 controller illustration was created by Mark Davis (Vect-O-Gram)
MD5 support was developed by Joseph Myers (MD5.js)
Zip support was developed by Gildas Lormeau (Zip.js)
YM2151 support was ported from FM Sound Generator by Kuma