Privacy Policy

Last updated: March 1, 2026

Your files stay on your device

HarmonySet processes playlist files entirely in your browser. Your files are never uploaded to any server. All parsing, analysis, and optimization happens client-side using JavaScript. We have no access to your playlist data.

What we collect when you sign up

If you create an account (via email or Google sign-in), we store your email address and display name in our database. That's it. Google OAuth is used for authentication only — we request your name and email, nothing else. We don't access your Google Drive, contacts, or any other Google data.

How we use your data

Your email and display name are used solely for account management — logging in, identifying your saved playlists, and sending you important account-related updates if needed. We don't send marketing emails unless you explicitly opt in.

We don't sell or share your data

We do not sell, rent, or share your personal information with third parties. Your data is yours.

Cookies and analytics

We use essential cookies for authentication (keeping you logged in). We may use basic, privacy-respecting analytics to understand how the site is used. We don't use tracking pixels, retargeting, or advertising cookies.

Contact

If you have any questions about this policy or your data, reach out at hello@harmonyset.com.