Pilas-melonDS vs SkyEmu

Pilas-melonDS is a free HTML5 and WebAssembly browser frontend for the melonDS Nintendo DS emulator. It opens.nds,.dsi, and.srl files, runs in DS mode by default, and offers experimental DSi mode. Controls include keyboard, Gamepad API, touch, and DS touchscreen input. Users can choose Canvas 2D, WebGL 2, or WebGPU rendering, with audio through WebAudio. Cartridge saves and browser save states use IndexedDB, with as many as six save-state slots per ROM. The frontend can install DSiWare.cia files into DSi NAND or virtual SD storage. Camera and microphone input for DSi require browser media permission and a localhost or HTTPS origin. Browser internet mode provides a compatibility shim for DHCP, DNS, ARP, and basic TCP/HTTP, but it cannot provide arbitrary raw UDP/TCP internet or decrypt HTTPS traffic within the browser sandbox. DSi menu boot requires legally dumped BIOS files and a writable NAND dump; normal DS direct boot can use the built-in FreeBIOS fallback. The project is licensed under MPL-2.0.

SkyEmu is a free emulator for Game Boy, Game Boy Color, Game Boy Advance, and Nintendo DS systems. It runs on Android, iOS, Linux, macOS, web, and Windows, and can load ROMs compressed in ZIP archives. Graphics options include upscaling shaders, color correction, and screen ghosting. Controls include game controllers, rumble, configurable keybinds, and mobile on-screen controls. Four persistent save-state slots include screenshot previews. A REST-like API supports asynchronous scripting and automation, and listed integrations include Retro Achievements, a RetroArch/libretro core, and Google Drive save-state sync. The web app runs locally using WebAssembly and JavaScript, keeping files on the user's machine; its service worker enables offline use on more platforms. The project describes its focus as preserving these systems for future generations while providing a good user experience. It says Game Boy Advance emulation is significantly more accurate than its Game Boy and Game Boy Color emulation. Many Nintendo DS games still have mild graphics and audio issues, and DS emulation is beta quality.