Gearlynx vs Javatari

Gearlynx is a free, open-source Atari Lynx emulator and debugger written in C++. It supports the commercial Lynx catalog and most homebrew and demo software, with Lynx I or Lynx II emulation selectable. Supported ROM formats include lnx, lyx, o, bin, and zip, including compressed and homebrew files. Gaming tools include save states with previews, rewind, run-ahead to reduce input latency, audio emulation, VGM recording, and EEPROM and NVRAM save files. ComLynx multiplayer connects up to eight emulator instances on one computer. The debugger provides disassembly, CPU and memory breakpoints, debug symbols, memory editing and search, hardware register views, and cartridge and video inspectors. An embedded MCP server supports AI-assisted debugging, with execution controls, memory inspection, breakpoints, screenshots, and rewind over STDIO or HTTP. Standalone builds are listed for Windows, Linux, BSD, and macOS; libretro includes Android and iOS. Gearlynx requires a BIOS. Concurrent HTTP clients control the same emulator instance and may interfere with one another.

Javatari is a free Atari 2600 emulator designed for the Web. Users can load cartridges in a browser, with ROMs opened from local storage, iCloud, Google Drive, Dropbox or web links. It runs in browsers tested with Chrome, Firefox and Safari, and can be installed as a WebApp on iOS, Android or desktop for offline play. Savestates can be exported and shared. Playback controls include adjustable speed, pause and frame-by-frame advance; display tools include resizing, fullscreen, screen capture and debug modes. Customizable joysticks, joykeys and touch controllers are available, with haptic feedback on mobile. NetPlay lets multiple users connect to and control one virtual console over the internet, although it does not work on Apple iOS because required WebRTC technologies are unavailable there. Performance depends on network quality. A JavaScript API supports ROM loading and console control, and games can be embedded in webpages or launched with a Javatari page link. The project repository identifies the software as licensed under AGPL-3.0.