binjgb vs Coffee GB

binjgb is a free, open-source emulator for Game Boy, Game Boy Color, and Super Game Boy systems, implemented in C. It runs on Windows, macOS, Linux, and in a browser through WebAssembly. The browser demo lets users upload a game file, and touch-capable devices display an on-screen gamepad. The project describes its timing as cycle accurate and says it passes many timing tests. Supported cartridge controllers include MBC1, MBC1M, MMM01, MBC2, MBC3, MBC5, and HuC1. Users can save and load battery backup data and emulator states to files. Playback options include fast-forward, pause, single-frame stepping, rewind, and seeking to a cycle; audio channels and background, window, and sprite layers can be toggled. The project describes Game Boy Color support as incomplete but passable and Super Game Boy support as mostly implemented. The debugger is marked as a work in progress. Building requires CMake and SDL2, and the debugger uses Dear ImGui. The repository includes an MIT license whose terms permit use, modification, distribution, sublicensing, and sale subject to its conditions.

Coffee GB is a desktop emulator for the original Game Boy and Game Boy Color, with support for Super Game Boy features. It runs on Windows, macOS, Linux, and Android, and accepts .gb, .gbc, and .rom files, including games inside ZIP and 7z archives. ROM files are not included. For saving and reviewing play, it offers ten slots, named save states with previews, autosave and resume, screenshots, input recordings, and rewind. Rollback netplay supports link-cable games and synchronized infrared communication. Keyboard and controller input are supported, with separate controls for up to four players in compatible Super Game Boy games. Cartridge support includes real-time clocks, rumble, tilt, Game Boy Camera, and Game Boy Printer. Cheats include Game Genie and GameShark, with a searchable libretro database. The project reports 5,858 automated verdicts passing across 17 test suite families. Coffee GB is free and distributed under the MIT License. Netplay uses a direct, unencrypted TCP connection; the project advises using trusted people and networks. On macOS, controllers require compatible system SDL2, though keyboard input and emulation work without it.