While there isn't a "Ninite for Emulators," some community tools help automate the setup:
Originally for Steam Deck, EmuDeck for Windows is a tool that downloads, configures, and updates a massive library of emulators (Dolphin, PCSX2, RPCS3, etc.) for you automatically.
ES-DE provides a unified, beautiful interface for all your emulators.
If you are looking to download multiple emulators in one go, there isn't a single official "Download All" .exe for every system, but there are high-quality and automated installers that do exactly this. 1. RetroArch (The All-in-One Solution)
Never download "All Emulators.zip" or "Emulator Pack.exe" from unofficial sites or YouTube descriptions. These are high-risk for malware.
RetroArch is the most popular way to manage "all" emulators. Instead of downloading separate .exe files, you download one program. It uses "Cores" (modular emulators).
Go to Main Menu > Online Updater > Core Downloader . From there, you can select and download emulators for NES, SNES, Genesis, PlayStation, and dozens more instantly. 2. EmulationStation Desktop Edition (ES-DE)