What you get
Your public profile
Top artists, tracks, and genres at its own URL. Share it anywhere — no sign-in required to view.
Taste comparison
Compare your musical compatibility with anyone. The Jaccard score is published — no black box.
Taste badges
Loyalist, Diverse, Deep Cuts, Contrarian, and more. Positive and anti-form revealed side by side.
Reviews
Leave 1–5 star reviews on any profile. They show up in the owner's feed.
OG images, always fresh
Every profile, comparison, and badge generates a server-rendered share image automatically.
From early testers
“Finally somewhere to put my Spotify aside from a playlist.”
“The compat score with my flatmate turned out to be 91%. We were both surprised.”
“Used it to settle an argument about who had the better taste in music. The Jaccard score didn't lie.”
See it in the wild
Public profiles from real early testers.
2 profiles and growing
Frequently asked
Do I need a Spotify account?
Yes. Basis uses your Spotify listening history to build your profile. Apple Music support is planned.
Is my listening data public?
Only the profiles you mark as public are visible. You can keep your profile private at any time.
How does the compatibility score work?
It uses Jaccard similarity on your top artists and genres (weighted 60/40). The formula is published and deterministic.
Is Basis a web app or native?
It's a progressive web app — works in any browser, on any device, no installation required.
Is Basis free?
Yes. Basis is free to use. No credit card, no invite code required.