Rando! Chord Generator

RANDO! — THE ORIGINAL CHORD GENERATOR
Rando! throws random chords at you so you stop practicing what's comfortable and start playing what's real. No patterns. No muscle memory shortcuts. Just chords.
WHAT'S INCLUDED —

Random major chord generator across all 12 keys
Big bold chord display with blurred prev/next preview
Adjustable tempo from 40–200 BPM
Start, stop, skip forward and back
Beat counter dots
Metronome sound on/off
Settings, Terms of Service, Privacy Policy
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UPGRADE TO RANDO! PRO — $2.99 ONE-TIME
For a limited time unlock PRO for just .99!


3 view modes — Minimal, Moderate, Full — cycle to show exactly what you need
Custom layout builder — drag and reorder every section of the play screen
Multi-key mode — select one key or stack multiple keys and Rando! randomizes across all of them simultaneously. Great for ear training across key centers
4 instruments — Guitar, Piano, Ukulele, Banjo with live chord diagrams
Fretboard diagrams — open and barre voicings for Guitar, Ukulele, Banjo
Piano keyboard diagrams — highlighted keys for every chord
Instrument-aware keys — natural keys shown first, with a "+ More keys" expander. Key resets automatically when you switch instruments
Chord types per instrument — Guitar: open & barre major/minor, Dom 7th, Maj 7th, Diminished · Piano: full voicings including Min 7th, Dim 7th, Augmented · Ukulele & Banjo: practical voicings for their strings
Time signatures — 2/4, 3/4, 4/4, 6/8
Chord density — 1 or 2 chords per measure
Hide prev/next — blur out adjacent chords so you can't peek
6 metronome sounds — Ice Cream Bell, Cowbell, Cha-Ching, Wood Block, Boing, Toy Whistle
Beat trigger control — every beat, downbeat only, or chord changes only
Haptic feedback — vibrate on chord change
Fun voice lines — "Excellent choice!", "Extra sprinkles — tasty!" and more
Sprinkle animations — confetti bursts with Light, Medium, or Blizzard intensity, with full control over what triggers them