Nintendo Entertainment System Emulators

BizHawk is a multi-system emulator focused on Tool-Assisted Speedruns (TAS). It supports over 30 consoles, offers frame-by-frame rewind, RAM watch, Lua scripting, and is the go-to tool for the TASVideos community.

Delta is the best free multi-system emulator for iPhone and iPad. Available on the App Store, it supports NES, SNES, N64, GBA, GBC, and DS — no jailbreak required.

Mednafen is a high-accuracy multi-system emulator with best-in-class cores for Saturn, PS1, PC Engine, Neo Geo Pocket, Virtual Boy, NES, SNES, and Game Boy. A first choice for accuracy-focused emulation.

Mesen 2 is a high-accuracy multi-system emulator covering NES, SNES, Game Boy, and GBA. It features cycle-accurate emulation, advanced debugging tools, and excellent game compatibility.

OpenEmu is the best all-in-one emulator for macOS, unifying multiple cores in one polished Mac-native app. It supports a huge range of consoles with automatic ROM organization, artwork fetching, and iCloud saves.

RetroArch is an all-in-one frontend for emulators, game engines, and media players. It brings hundreds of emulator cores under one roof with a unified interface, shader support, and cross-platform availability.

FCEUX is a mature NES/Famicom emulator with wide mapper support. It includes a built-in debugger, RAM search, and TAS recording tools favored by the speedrunning community.

Nestopia Undead Edition is a fork of the classic Nestopia emulator focused on accuracy and broad software compatibility with the full NES and Famicom game library.