KeyWiz: Chord & Transpose shifts whole chord charts in a blink, lights up scales on a full piano keybed, and keeps your tempo honest. No signal needed, no stress, just music.
Try the transposerSee what's insideType any chord progression, nudge it up or down, flip to Nashville numbers, then tap a chord to hear it.
Tap the keys too. Sound is generated on your device with WebAudio.
Slide an entire chord chart up or down by any interval from -12 to +12 and match the singer in seconds.
Turn C, Am, F, G into I, vi, IV, V so the whole band can jam in any key without squinting at charts.
See exact key placements and roots across all 88 keys for triads, 7ths, 9ths, sus and diminished chords.
Instant overlays for Major, Harmonic and Melodic Minor, Pentatonic, Blues and church modes like Dorian and Mixolydian.
Tap the beat to find your BPM, then pick haptic or acoustic clicks that suit your rehearsal room.
Check the sharps and flats of all 12 major and minor keys, organized by the Circle of Fifths.
Archive transposed setlists and custom arrangements, ready for the stage or the studio.
Basements, booths, backstage, zero bars of signal. Everything still works.
🎹 We are a small crew of players, teachers and tinkerers who got tired of rewriting chord charts at the last minute before every gig.
🎯 Our mission is simple: make music theory feel friendly, fast and available wherever music actually happens, even where Wi-Fi never will.
🎼 KeyWiz gives you instant transposition, Nashville numbers, scale maps, a tap-tempo metronome and a vault for your setlists, all in one calm, tidy place.
🎶 Play in any key. Think in none.
Effective Date: September 2026
KeyWiz: Chord & Transpose does not collect, store or transmit any data. Everything you do in the app stays on your device.
None. We do not collect personal information, usage data, device identifiers, location or audio. The chords, progressions and tempos you enter are never sent to us.
Because we collect nothing, we have nothing to use, analyze, sell or share. Your input is used only on-screen to transpose chords, show scales and run the metronome.
Songs in your Chord Vault and your app preferences are saved locally on your device only. There is no cloud storage and no server-side copy.
KeyWiz includes no analytics, advertising networks, social plug-ins or trackers. The app works fully without an internet connection.
Since data never leaves your device, it is protected by your device's own security, such as your passcode and system encryption. We recommend keeping your device updated.
The app is suitable for young musicians. Because we collect no personal information from anyone, including children under 13, we remain consistent with the spirit of COPPA.
You are in charge. There are no accounts to create or close. To delete all saved songs and settings, simply uninstall the app.
If we update this policy, the new version and its effective date will appear here and in the app's next release. Our core promise of collecting no data will not change quietly.
Questions about privacy? Write to privacy@keywizchordtransposeapp.com.
💌 Got a question, a feature wish or a tune you can't transpose? Drop us a line, we love hearing from fellow musicians.
⏱️ We reply to every message within 24 to 48 hours.