Nintendo Entertainment System Emulator

Before you play

This page uses EmulatorJS with the configured fceumm core. You need your own lawfully obtained game dump; this site does not supply commercial ROMs or BIOS files.

NES cartridge images usually include a header identifying their memory layout. A filename extension alone cannot verify that header or the cartridge mapper.

This app does not require a BIOS selection to enable Start. That is an interface rule, not a guarantee that every game or media type is free of firmware requirements.

The emulator runtime must load before a game can start. Your selected game files are used locally, not uploaded to a game server.

Accepted files

This page accepts: .nes. These are importer extensions, not a tested game compatibility list.

Select a game file in one of the listed formats. A generic BIN or ROM extension does not identify the correct system.

ZIP containers can be extracted locally by the importer. Keep all required game files together; extraction does not convert a dump into another system or format.

Controller setup

NES games normally use a D-pad, A, B, Start and Select. Light-gun and other special-controller games need additional input support.

Use the player input settings to inspect or change bindings. Focus the game before using the keyboard, and connect a gamepad before checking its inputs. Browser recognition does not guarantee every controller or accessory works.

Known limits

Not every cartridge mapper or peripheral is guaranteed to work. This importer accepts NES files but does not validate every game internally.

Performance and accuracy depend on the game, core, device and browser. No per-game compatibility or full-speed guarantee is made.

The local library may need you to re-link files when browser storage is unavailable or cleared. Keep original dumps and independent backups of important progress.

If a game does not start

If a NES file boots to a blank screen, check the dump and mapper information against the core documentation.

Check the player error message, the selected system and the original dump first. A successful extension check does not validate the file contents. See Guides for the import workflow and the core reference below for system requirements.