Turn any song into a Game Boy version.
WAH! 🎮
Type in literally any song. We'll find a MIDI file somewhere on the internet and absolutely demolish it through a janky homebrew Game Boy sound chip running in your browser.
Is it accurate? Sometimes. Is it legal? Probably. Does it slap? Absolutely.
Four glorious channels of chiptune chaos:
- 🟨 Pulse 1 — screamy lead melodies
- 🟨 Pulse 2 — whatever pulse 1 forgot
- 🟩 Wave — chunky bass that hits different
- ⬜ Noise — percussion (tssss pshhhh)
Zero samples. Zero server audio. Just raw oscillators having the time of their lives.
wario.style ← go make your favorite song worse
- MIDI search from BitMidi and other sources
- Browser playback with soundfont piano preview
- Wario Synthesis Engine: procedural Game Boy-style synthesis from parsed MIDI structure
- Share links with dynamic social previews
- Works on mobile (iOS audio unlock included)
# Install frontend deps
npm install
# Install backend deps
cd server && npm install && cd ..
# Run backend (http://localhost:3001)
npm run dev:backend
# Run frontend (Vite prints the URL, typically http://localhost:5173)
npm run dev- User searches for a song
- Backend searches MIDI sources and returns ranked candidates
- User picks a MIDI source
- Frontend parses MIDI into normalized note events
- Wario Synthesis Engine maps tracks to Game Boy sound channels
- Web Audio oscillators generate the retro sound
WARIO SYNTH includes an embeddable widget at /embed:
<iframe
src="https://www.wario.style/embed?song=Hotel%20California"
width="420"
height="260"
style="border:0;border-radius:12px;overflow:hidden"
allow="autoplay"
></iframe>- Frontend: TypeScript, Vite, Web Audio API
- Backend: Express, Node.js
- Deployment: Vercel
- Built with: Claude Code
A non-commercial project by @b1rdmania for lols. Please don't sue me.

