Privacy Policy

Deck One runs in your browser. Your audio files are analyzed locally whenever supported by the current processing pipeline — they are not uploaded for analysis and we do not store them. If a feature requires server-side audio processing, Deck One will clearly indicate that before processing.

When you use optional online identification or enrichment, only the minimum metadata required (typically artist and title text) is sent to supported external reference services such as MusicBrainz, Deezer or Apple Music, to fetch genre tags, release information and artwork. No audio is included.

If you sign in, analysis results (fingerprint, BPM, key, energy, genre and your edits) can be saved to your cloud workspace so the same track does not need re-analysing. Analysis results are stored — audio files are not.

We store a single cookie-style value in your browser to remember your cookie choice. Basic, aggregated analytics may be collected to understand feature usage.

Your original files are never modified or deleted. Exports are new copies in a ZIP, and conversion only happens when you explicitly request it.