Free audio tools — chords, separation, music theory.
A growing toolkit for musicians and producers. Detect chords and tempo from any audio, split a song into stems, turn a part into MIDI, and explore music theory — all in the browser, free, no signup.
Core tools
One tool per job — chords, stems, MIDI, tempo and theory.
- Analysis
Chord Finder
Drop any MP3 or WAV and get the full chord progression, key and tempo straight from the audio. Export to TXT, CSV or JSON.
Open tool - Separation
Stem Splitter
Split a song into separate stems — vocals, drums, bass, guitar, piano and more. Download each one, plus the chords, key and tempo for the same track.
Open tool - Separation
Vocal Remover
Strip vocals from a song and download a clean instrumental backing track — ready for karaoke, practice or remix work.
Open tool - Separation
Vocal Extractor
Pull the vocal stem out of a finished mix for sampling, study or an a cappella edit.
Open tool - Analysis
Audio to MIDI
Turn a melody, bass line or solo into editable MIDI notes on a piano-roll, then download the MIDI file for your DAW.
Open tool - Analysis
BPM Finder
Detect the tempo of any track. Upload audio for an automatic BPM read, or tap along to find the beat by ear.
Open tool - Theory
Circle of Fifths
Interactive chord wheel. Click any key to highlight its diatonic chords, hear them instantly and explore major/minor relationships.
Open tool - Theory
Chord Progression Generator
Build a progression from the chords in any key, loop it back at any tempo, follow next-chord suggestions, load classic presets and export to MIDI.
Open tool - Chords
Guitar Chord Finder
Pull the chord progression, key and tempo out of any guitar recording — open or barre, capo, drop D and alternate tunings all welcome.
Open tool - Chords
Piano Chord Finder
Look up any piano chord — major, minor, 7ths, extensions — and see the voicing on a keyboard with the notes spelled out.
Open tool - Chords
Ukulele Chord Finder
Find ukulele chord shapes by name. Standard GCEA tuning, fingering diagrams and common variations side by side.
Open tool
More separation presets
Shortcuts, not separate products. Each one runs the same separation as the Stem Splitter, just pre-set for one job so you skip picking stems yourself.
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