Welcome to Harpzilla
Harpzilla is your interactive toolkit for harmonica players — whether you’re just starting out or already performing on stage. It provides everything you need to practice, learn, and analyze your playing: scales, positions, arpeggios, and recording tools — clean, fast, and fully offline.
Explore your harp’s layout note by note, discover new playing positions, or experiment with custom riffs and licks. The full version lets you record songs, set loop points, analyze pitch and key, and export your sessions as PDF or JSON files.
Choose a section from the top navigation to get started:
- Scales: Complete overview of harmonica tunings and layouts
- Position Finder: Visual guide to all 12 playing positions
- Arpeggios: Core chord tones and melodic building blocks
- Notation: Record and annotate your harmonica sessions
- Riff Finder: Match scales and positions to your favorite licks
Harpzilla runs entirely in your browser — no login, no cloud, no cookies.
All your data stays local on your device.
How it works
Harpzilla runs entirely on your device — no cloud, no sign-up, no tracking. Perfect for practice, sessions, or live use.
- 0 servers: No data exchange — nothing is sent or received.
- 0 cookies: No IDs, no tracking, no ads.
- Local only: All data is stored in your browser.
- Full control: You decide when to export or delete.
This makes Harpzilla fully GDPR-compliant and it also works offline.
Privacy excerpt
Your content is stored locally only. No personal data is transmitted.
read full privacy notice (German)Note: When opening external links (e.g., Help, Ko-fi) their privacy policies apply. Harpzilla itself sends no data.
Support
Harpzilla is a project by noiselevel.de — an architecture studio that builds digital tools from practice — and an independent music project, free of ads, sponsors, or data collection. They launched AlfaLog.de to provide free access to web tools. Everything is created in spare time, driven by a love for music and good tools. If you enjoy the app, please support its development:
- One-time — a small “thank you” for inspiration or progress.
- Monthly — helps build new features, sounds, and designs.
- What for? Domains, hosting, updates, tests, support, and demos.
Every bit of support goes straight into development: more features, more stability, and new sounds for everyone.
External link to Ko-fi (opens in a new tab). Your donation keeps Harpzilla
free, ad-free, and independent — with no data sales or subscriptions.
Thanks for your support — personal, transparent, musical.
Contact, Feedback & Help
Got an idea, found a bug, or just want to tell us Harpzilla helps you? Write us directly — we read every message ourselves and love honest, practical feedback.
Thanks for thinking along — that’s exactly how the project grows.