Every playlist has a sound. Attracr measures yours.

Attracr analyses the music in your public Spotify playlists, shows which tracks fit the sound you built, and tracks how your follower count moves over time.

What you get to look at

Four views of the same playlist: its shape, its history, its average, and the list you start from.

The harmony view of a playlist: a score of 78 labelled Cohesive, four horizontal feature bars for energy, loudness, danceability and valence, each showing every track as a dot inside or outside the tolerance band for that feature, and a production-style bar splitting the playlist into electronic, in-between and acoustic. — Every track plotted against the range the playlist already sits in.

A follower graph for a playlist over one month, rising from about 17,150 to about 18,190, with dashed vertical markers on the three days tracks were added or removed. — Follower history with the days you changed the playlist marked.

The average shape of a playlist across seven audio features.

The Attracr dashboard listing four tracked playlists with their follower counts, above a total follower count and the number of playlists tracked. — Every playlist you track, in one place.

Screenshots show example data from a playlist that does not exist. They illustrate the interface, not a result.

Three things Attracr is for

Curating a playlist is a long series of small judgement calls. Attracr gives you numbers for the ones you were guessing at.

A sound you can see

Attracr analyses every track in your playlist and plots them together, so the shape of your playlist becomes something you can look at instead of something you sense.

Tracks that belong

Suggestions are drawn from the sound you already built, not from a generic popularity chart. You decide what fits.

Followers over time

Daily follower counts, lined up against the days you actually changed the playlist.

What Attracr can and cannot do

The limits below are structural, not promises. They are the reason nothing on your Spotify account can be damaged by a bug on ours.

No write path

Attracr cannot change your playlists — not by policy, by architecture. No code in Attracr writes to Spotify.

Public data only

Attracr reads the same public Spotify pages anyone can open in a browser.

Sign-in is only sign-in

Your Spotify or Google login identifies you, and nothing more. The token is never used to read your library.

You act, in Spotify

Every suggestion is applied by you, in Spotify.

Attracr is an independent product and is not affiliated with, endorsed by, or sponsored by Spotify AB.

How it works

Three steps, and only the last one is yours to do.

Connect
Sign in with Spotify or Google and point Attracr at a public playlist.
Analyse
Attracr listens to the tracks and takes a follower reading every day.
Decide
You get the picture; you make the changes in Spotify.

How Attracr works, in more detail

Where Attracr is right now

Attracr is in open beta and free. You can track up to five playlists, and a playlist has to be public for Attracr to read it — you can make it private again afterwards. Limits will change as the analysis pipeline gets cheaper to run.

Questions people ask before signing in

Start with one playlist

Point Attracr at something you already curate. The first reading lands within a day.