Next-Level Retro Immersion

Ultimate Browser-Based NES Emulator

Load any NES ROM, pair your controller or use the built-in virtual pad, enjoy zero-setup audio + video, performance metrics, rewind-ready core, and modern UX enhancements — all baked into one powerful HTML file.

FPS: 0
Audio: Locked
ROM: None loaded
Render Mode: Pixel Perfect

Load a ROM

Drop a .nes file, browse locally, or fetch via URL. Everything runs 100% client-side.

Drag & Drop NES ROMs Here

Instant loading with visual + audio sync

Tip: You can pair a USB/Bluetooth controller and map via browser Gamepad API for a native feel.

Virtual Controller

Keyboard defaults: A=X, B=Z, Start=Enter, Select=Shift, D-Pad=Arrow Keys. Remap via your OS/gamepad layer for pro setups.

Diagnostics

Frames Rendered: 0
Audio Samples Queued: 0

How to Get Peak Performance

  1. Use modern browsers (Chrome, Edge, Safari, Firefox latest) for WebAudio + WASM optimizations.
  2. Enable hardware acceleration in browser settings for smooth 60 FPS video.
  3. Unlock audio by clicking anywhere or pressing a button once the ROM is loaded.
  4. Prefer high-quality dumps (.nes files with proper iNES headers) for guaranteed compatibility.
  5. Use wired controllers when streaming/recording for the lowest latency path.