— Tools
Free tools
Browser-based utilities for producers and DJs. Everything runs locally on your machine — private by design, fast by consequence.
Audio · Analysis
BPM & Key Analyser
Tempo, musical key and Camelot wheel position for any track in seconds — analysed entirely in your browser, never uploaded.
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Audio · Loudness
LUFS Checker
Integrated LUFS, true peak and what Spotify, Apple Music or YouTube will do to your master — measured to BS.1770-4 in your browser, never uploaded.
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MIDI · Generative
Chord Progression Generator
Genre-aware progressions with proper voice leading — audition, lock, reroll, then export MIDI voiced exactly as you heard it. Twelve flavours, melodic techno to neo-soul.
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MIDI · Rhythm
Euclidean Rhythm Sequencer
Four polymetric lanes of E(k,n) drum patterns with synthesised kick, clap, hat and perc — rotate, accent, swing, then export the MIDI or the pattern geometry as an image.
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Audio · Instrument
Browser Synthesiser
A playable polyphonic subtractive synth — supersaws, acid squelch, hoovers and pads from your QWERTY or MIDI keyboard, with preset banks that teach synthesis and patches you share as URLs.
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Audio · Sound design
Drum Synthesiser
Design kick, snare, hat, clap, perc and cowbell one-shots from scratch — 808-style sub tails to zap percs — audition on pads or a pattern, then export WAVs or the whole kit as a ZIP.
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Audio · Wavetables
Wavetable Designer
Draw single-cycle waves or build them from harmonic sliders, morph between keyframes and play the table live — then export wavetable WAVs that drop straight into Serum, Vital, Pigments or Ableton.
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MIDI · Generative
Melody & Bass Generator
Chords in, topline and bassline out — harmonically aware lines in twelve genre flavours, with rerolls that keep what you like, a piano roll that shows why the notes work, and multi-track MIDI export.
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