Audio quality
Sounds like a real band.
High-quality instrument samples, played and mixed to industry standards. Every chord, real takes — produced to hold up next to a real recording.
Studio-grade samples
Practice with a real band.
No band required.
Build a chord chart, choose your style, and hear it played back by real instruments — any key, any tempo. Mute the bass or drums, turn on the metronome, and practice your part. Or start from thousands of charts already in the library.
Editor's cutTry it — type a chord, press play
Take 01Scroll for the spread
— 01 / Method
Three moves to a song.
01
Pick a style
Rock is live now with its own real-instrument sample library. Funk, Jazz, Bossa Nova, and more on the way.
02
Build your chart
Add bars, assign chords, split beats, mark repeats, segnos, codas — everything a chord chart needs. Any progression you know, in any key.
03
Press play
Hear it back with real instruments. Set the tempo, transpose freely, mute parts you want to play yourself.
— 02 / Specifications
What's under the hood.
2,900+
Community chord charts ready to play. Search by title, key, or style.
Any key,
any chord.
All 12 keys with major, minor, and seventh chords. Advanced chord types on the way.
In the
browser.
Desktop, tablet, phone. No install.
— 03 / Notes
Common questions.
A few things worth knowing before you start.
Yes. JammLab runs in any modern mobile browser. The chord editor and player are both optimized for touch — pull it up on your phone at a gig or band practice and use it as a chord chart viewer.
Absolutely. You can build a chart in seconds, search the library for an existing song, and use it purely to read changes — at a rehearsal, on a gig, or just to study a progression. When you want to practice with a band but don't have one around, hit play.
Professionally produced and mastered to industry standards. It sounds like the real thing from the first note.
Rock at launch. Tempo makes more difference than you might expect — a slow rock groove feels completely different from an uptempo one, so there's real range even within one style. Funk, Jazz, Blues, Latin, Bossa Nova, Country, and Gypsy Jazz are all planned. We're starting with one style done right, then expanding based on what players actually need.
Yes, completely free right now. JammLab is in its first public release — we want to hear from real players before building out the full product. A small subscription will come later as more styles and features are added, but we'll take good care of early users.
Yes. Set any tempo from 50 to 190 BPM — slow for learning, full speed for performance prep. The sound stays clean across the whole range.
— 04 / Coda
Ready to play?
Free during early access. No install needed.
Free · Early access · Sign up with Google