ChordGrind

ChordGrind

Keyboard Chord Trainer

Build keyboard fluency with rapid chord identification drills. Triads and 7th chords — all inversions, all 12 keys. Free in your browser.

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No sign-up · Free forever

Triads

Major, Minor, Diminished, Augmented, Sus2, Sus4 — root position and all inversions.

Seventh Chords

Maj7, Dom7, Min7, MinMaj7, Half-dim, Dim7 — across all 4 inversions.

Sight-Reading Drills

Staff notation, chord symbols, metronome, and audio playback in one flow.

See it in action

Practice Modules

Free trainers for chords, voicings, reading and ears — all 12 keys, right in your browser.

Chord TrainerTriads, 6ths, 7ths and extended chords in all 12 keys and every inversion — with a metronome or MIDI keyboard.Start →Piano Sight-Reading TrainerRead intervals, chords and broken-chord patterns as shapes. Flash drills on any piano, MIDI optional.Start →Shell Voicing ii–V–IRoot + 3rd + 7th guide-tone shells and Bud Powell half shells through all 12 keys.Start →Circle of Fifths & Rootless ii–V–ICycle 7th chords around the circle of fifths, or drill Type A and B rootless voicings in every key.Start →Chord Progression TrainerCommon 4-chord progressions in all 12 keys, revealed beat by beat with a built-in metronome.Start →Mode Ear TrainerIdentify the 7 church modes by ear — scales, characteristic intervals and mode chords.Start →Piano Scale Fingering ChartsMajor, minor, pentatonic and blues scale fingerings in all 12 keys, on the grand staff with a fingering table.Start →

Daily

Today's Practice

How to Save Your Progress

All records are stored in your browser — nothing is uploaded to a server.

  1. 1

    Practice

    Complete a drill session. Your progress is saved automatically in this browser.

  2. 2

    Click "Export" in the top nav to back up

    Downloads a .json backup file to your device. Do this regularly to keep your data safe.

  3. 3

    Click "Import" to restore

    Select your saved file on any device or browser to bring your records back.

  4. 4

    Track your progress

    View your session history, BPM trends, and weekly charts on the Dashboard.

    Go to Dashboard →

Clearing your browser data or switching browsers will erase local records — keep your export file safe.