Structural, rhythmic, and lexical analysis across 70+ criteria. Runs entirely in your browser.
What this tool is: a measurement of songwriting craft against pop and radio conventions. What it is not: a prediction of virality, a measure of artistic value, or a verdict on your work. A song can score 100 and never land with listeners, or score 50 and connect with millions. Treat the number as a map of format fit — not a judgment.
Section tags like [Verse 1], [Chorus], [Bridge] help the analyzer. Separate multiple songs with a line containing only ===
Your Library
All songs you've saved, with scores over time. Data stays in your browser — export to back up.
Artist Profiles
Build a profile from 3+ songs of an artist you want to sound like (or your own older work). Your songs get compared against that profile to show how close you are.