Harmonia – 432Hz Music Player & Frequency App
Harmonia is the free, AI-powered 432Hz music player that converts your Spotify, Apple Music, SoundCloud, YouTube and Deezer playlists into the natural 432Hz frequency, and unlocks binaural beats, solfeggio frequencies, meditation music and healing sounds in one place.
Launch Harmonia Player →
What is Harmonia?
Harmonia is a free online music player and sound therapy app designed for people who want to experience how music truly feels. Unlike standard streaming services, Harmonia performs a real, mathematically accurate conversion of any audio track from the modern 440Hz tuning to the natural 432Hz frequency (pitch ratio 0.9818), directly inside your browser. There is no fake metadata tag and no marketing trick — only verifiable, audible audio processing.
Built on top of a complete music player, Harmonia connects to your existing libraries on Spotify, Apple Music, SoundCloud, YouTube and Deezer, organises your tracks with AI by genre, BPM, musical key and mood, and adds advanced features for conscious listeners: binaural beats, solfeggio frequencies, a virtual DJ booth, sleep and wake timers and a voice-controlled AI assistant. The app is available on the web, as a Progressive Web App and as a native iOS and Android application.
Why 432Hz instead of 440Hz?
440Hz is the modern tuning standard for the musical note A, officially adopted by the International Organization for Standardization in 1953. 432Hz is an alternative tuning often described by musicians, researchers and listeners as warmer, more grounded and more harmonious with the human body — which is composed of approximately 70% water and is highly sensitive to vibration.
While the scientific debate is still open, many users consistently report deeper relaxation, improved focus, better sleep quality and a more stable emotional state when listening to music tuned in 432Hz. Harmonia lets you compare both versions of the same track in a single click, so you can decide for yourself whether the difference is real for you.
Features
- Real 432Hz conversion for any track — verifiable, not a fake tag rename.
- Playlist import from Spotify, Apple Music, SoundCloud, YouTube and Deezer.
- AI organisation by genre, BPM, key and mood — your library, sorted automatically.
- Binaural beats generator with independent left / right channels and four wave shapes.
- Healing frequency library: 174, 285, 396, 432, 528, 639, 741, 852 and 963 Hz.
- Virtual DJ booth with seamless mixing, EQ, filters, loops and effects.
- Sleep & wake timers with progressive fade-in and fade-out.
- Voice AI assistant — ask for music in natural language.
- Cross-platform: web, PWA, native iOS & Android — no install required to start.
- 100 % free during beta, no ads, no tracking.
Binaural beats & brainwave entrainment
Binaural beats are an auditory illusion created when two slightly different frequencies are played in each ear. The brain perceives a third "phantom" frequency equal to the difference between the two — an effect that can encourage specific brain states. Harmonia ships with curated presets for delta sleep, theta meditation, alpha relaxation, beta focus and gamma awareness, plus full manual control over channel offsets, wave shape and amplitude.
Meditation & sound therapy
Whether you practise mindfulness, yoga nidra, breathwork or sound bathing, Harmonia gives you instant access to meditation music tuned in 432Hz, the nine traditional solfeggio frequencies (174Hz, 285Hz, 396Hz, 417Hz, 432Hz, 528Hz, 639Hz, 741Hz, 852Hz, 963Hz) and pure tones generated client-side. The immersive player visualises each track as cymatic patterns and animated vinyl, turning every session into a multisensory experience.
Virtual DJ booth & live mixing
The integrated DJ booth lets you mix two streaming tracks in real time — crossfade, EQ, filters, loops, FX — directly from your library, with everything converted to 432Hz on the fly. It's perfect for conscious DJs, ceremony hosts, wellness facilitators and creators who want to perform without juggling multiple apps and conversions.
Import from Spotify, Apple Music, SoundCloud & YouTube
Paste any link or connect your account, and Harmonia will import your playlists in bulk. The app normalises metadata, fetches lyrics and cover art, detects BPM and musical key automatically, and converts everything to 432Hz on the fly. Your library follows you across the web, iOS and Android — and stays available offline through the Progressive Web App.
Frequently Asked Questions
Is Harmonia really free?
Yes. Harmonia is 100% free during the beta phase, with no ads, no credit card required and no hidden upgrade walls. You can convert unlimited playlists and use every feature, including the virtual DJ booth and binaural beats generator.
Does the 432Hz conversion really make a difference?
Many users report noticeable differences in relaxation, focus and sleep quality when switching from 440Hz to 432Hz. The conversion in Harmonia is mathematically exact (pitch ratio 0.9818) and produced via real client-side audio processing, not a fake tag. The best way to find out is to try it on a track you already know well and listen with headphones.
Can I import my Spotify or Apple Music playlists?
Yes. You can import playlists in bulk from Spotify, Apple Music, SoundCloud, YouTube and Deezer by pasting a link or by securely connecting your account. Harmonia normalises metadata, fetches artwork and lyrics, and converts every track to 432Hz on the fly.
What is the difference between 432Hz and 440Hz?
440Hz is the modern tuning standard for the note A, adopted in 1953. 432Hz is an alternative tuning historically favoured by many musicians and often described as warmer, more harmonious and more in resonance with the human body. Harmonia performs a precise pitch shift between the two so you can compare them directly.
What are binaural beats?
Binaural beats are an auditory illusion created when two slightly different frequencies are played in each ear. The brain perceives a third "phantom" frequency equal to the difference between the two, which can encourage relaxation, focus, meditation or sleep depending on the offset.
Does Harmonia work on mobile and offline?
Yes. Harmonia runs in any modern browser, as a Progressive Web App you can install in one tap, and as a native iOS and Android application built with Capacitor. Core features such as your converted 432Hz library remain accessible offline once cached.
Is the 432Hz conversion verifiable?
Yes. Harmonia performs a real client-side pitch shift using a 0.9818 ratio and exports a downloadable WAV file you can analyse with any third-party spectrum analyser. It is not a fake tag rename like some other services on the market.
In which languages is Harmonia available?
Harmonia is fully translated into English, Français, Español and Deutsch, with extended support for Italiano, Português, Русский, العربية, עברית, ไทย and 中文. You can switch language at any time from the top-right menu.
Try Harmonia for free
Open the player in your browser — no download, no credit card. Convert your first playlist to 432Hz in under 30 seconds.
Launch Harmonia Player →