Chord Library
Clear diagrams and sound for open chords, 7ths, sus, barre and more. Tap a chord to hear it.
Guitar practice, built for beginners
Learn the chords Master the changes
Chordlux gives you a chord library with diagrams and sound, a 60-second change drill you tap along to, and smart practice that repeats what you struggle with — no login, no internet, no subscription.
Everything inside Chordlux
One Minute Changes
Switch between two chords for 60 seconds and tap each change. No microphone needed, so it works in a noisy room and never judges you wrongly.
Smart Practice
The app automatically brings back the chord changes you are worst at, so you spend more time on what slows you down.
Metronome
Keep steady time while you practice chords and changes at your own speed.
Key Helper & Circle of Fifths
See how keys relate to each other and understand which chords belong together.
Capo Calculator & Strumming Trainer
Work out capo positions for any song and practise strumming patterns alongside your chord changes.
See how you practice
Built for real practice
Fully Offline
Every tool works without Wi-Fi or mobile data. Practice on a bus, in a bedroom, anywhere.
No Account Needed
Open the app and start. No sign-up, no log in, no personal data — ever.
One-Time Pro Purchase
A single payment unlocks all barre and advanced chords and removes ads. No subscription, no recurring charge.