Browser-based utilities for producers and artists. Everything runs locally — no account, no upload, no limits.
// 100% client-side · private · free// tempo & key
BPM & Key Finder
Detect the tempo (BPM) and musical key of any audio file. Shows Camelot wheel position and harmonically compatible keys. Drop a file — results in seconds.
Open →// mastering
Loudness Analyzer
Measure Integrated LUFS, True Peak, Momentary Max and LU Range. Compares your track against Spotify, YouTube, Apple Music, SoundCloud, Tidal and Amazon Music targets.
Open →// income
Streaming Revenue Calculator
Enter your stream counts per platform and get estimated earnings across Spotify, Apple Music, TIDAL, YouTube Music and more — plus your beat purchase breakeven point.
Open →// planning
Release Timeline Generator
Enter your release date and get a personalised backwards timeline — DSP submission, Spotify editorial pitch, pre-save, social announcements and more, all auto-calculated.
Open →// arrangement
Song Structure Planner
Build your arrangement visually. Add sections (Intro, Verse, Chorus, Bridge…), set bar counts and BPM — total track duration updates in real time. Copy as text when done.
Open →// music theory
Chord Progression Generator
Generate chord progressions by key, scale and genre — Pop, Hip-Hop, R&B, Jazz, Latin, Rock. Preview chords in the browser and export as a MIDI file.
Open →