JS7800

What JS7800 is

JS7800 is a free web-based JavaScript emulator for Atari 7800 games, developed as an enhanced port of the ProSystem emulator originally created by Greg Stanton. It requires an up-to-date browser such as Chrome, Firefox, or Safari, plus a capable system for smooth operation. Games can be loaded by dragging local files or remote file links into the emulator, or by using cartridge lists. It supports enhanced bank switching, cartridge detection, and the Atari 7800 Expansion Module. Controls include customizable keyboard mappings and gamepads, with dual-analog controls for Robotron-style games; a mouse can provide light gun input. Display options include fullscreen, multiple aspect ratios, and switchable video filters. Compatible games can use global high score tracking. The Help/Information button below the emulator screen opens integrated documentation. Save states are accessible through webЯcade. Mobile support is partially available in webЯcade and remains a future consideration; paddle controls and network multiplayer are also future considerations. The project uses the GPL-2.0 license.