Tech riderRev. 21 Sept 2026
- 1Runs onWeb
- 2CostsNot stated by the maker
- 3Atari systemsAtari 7800
- 4Supported platformsWeb
- 5Save statesNo
- 6NetplayNo
- 7Controller remappingYes
6 lines stated Written from the maker's own pages: raz0red.github.io

Overview
JS7800 is ranked #15 of 21 in Atari emulators on Specifiction. It runs on Web.
Compared on Atari emulators
- Free plan
- Yesraz0red.github.io
- Atari systems
- Atari 7800raz0red.github.io
- Supported platforms
- Webraz0red.github.io
- Save states
- Noraz0red.github.io
- Netplay
- Noraz0red.github.io
- Controller remapping
- Yesraz0red.github.io
Facts
- Purpose
- JS7800 is an enhanced JavaScript port of the ProSystem Atari 7800 emulator, originally developed by Greg Stanton.github.com · 5 Oct 2026
- Browser requirements
- JS7800 requires an up-to-date modern browser such as Chrome, Firefox, or Safari and a capable system for smooth operation.github.com · 5 Oct 2026
- High scores
- It supports global high score tracking for compatible games.github.com · 5 Oct 2026
- Controls
- It supports customizable keyboard mappings and gamepads, including dual-analog controls for Robotron-style games.github.com · 5 Oct 2026
- Display
- It supports fullscreen, multiple aspect ratios, and enabling or disabling video filters.github.com · 5 Oct 2026
- Cartridge loading
- Users can drag and drop local files or remote file links, and the emulator supports cartridge lists.github.com · 5 Oct 2026
- Light gun
- It supports light gun input through a mouse.github.com · 5 Oct 2026
- Expansion hardware
- It supports the Atari 7800 Expansion Module (XM), enhanced bank switching, and cartridge detection.github.com · 5 Oct 2026
- Documentation
- Integrated documentation is available through the Help/Information button below the emulator screen.github.com · 5 Oct 2026
- Mobile
- The README lists mobile support as a future consideration and says it is partially available in webЯcade.github.com · 5 Oct 2026
- License
- The repository identifies the project license as GPL-2.0.github.com · 5 Oct 2026
- Support status
- The README lists paddle controller support and network-based multiplayer as future considerations.github.com · 5 Oct 2026
Best JS7800 alternatives
See all 20 All accessCh 01 Virtual Jaguar Free planAndroidiOS Free to start7.8 All accessCh 02 Gearlynx AndroidAPI 7.4 All accessCh 03 Javatari Free planAndroidAPI Free to start7.4 All accessCh 04 Atari800 Free planAndroidLinux Free to start7.3 All accessCh 05 BigPEmu Free planiOSLinux Free to start7.3 All accessCh 06 kat5200 Free planAndroidLinux Free to start7.2
Where it ranks on Specifiction
- Best Atari Emulators in 2026#15 of 21
Is JS7800 yours?
Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.
Sources
- github.com/raz0red/js7800· checked 5 Oct 2026
