Jam JamReal-time chord detection
Play an instrument and Jam Jam names the chord and notes it hears, live, from your microphone.
The Jam Jam chord detector listens through your microphone and recognises the chords and notes you play in real time. Strum a chord on your guitar or piano and it names it instantly — 14 chord qualities across all 12 keys, 168 chords in total — and shows the notes it hears, along with the key and the tempo. What it recognises goes straight to your chord notebook, and the key it reads can lock the online keyboard. No download, no account: it runs in your browser.
How to find chords by ear
Allow the microphone
Open the detector and grant mic access — the audio is analysed on your device, never uploaded.
Play a chord
Strum or press a chord on guitar, piano or any instrument.
Read the chord name
Jam Jam names the chord live and shows the individual notes it detects.
Save it to your songbook
Keep the chords you find in your Jam Jam chord notebook to build the full song.
A chord detector that really listens
Advanced on-device recognition
It recognises 14 chord qualities across all 12 keys — 168 chords — with a real embedded model rather than simple templates, computed in your browser and never sent online.
Detect from your computer’s sound
Analyse your microphone, or a browser tab’s audio — a song playing on your computer — to find its chords.
Key and tempo, together
It reads the song’s key and its BPM at the same time as the chords.
See it, then reuse it
A live fretboard or keyboard lights up each chord, and your progression goes straight to your chord notebook, ready to transpose and export.
Why this detector
- Real-time chord and note recognition from the mic
- 14 chord qualities on the 12 keys — 168 chords recognised
- Great for learning songs by ear and checking voicings
- Free, private (on-device audio), no sign-up
What the detector hears does not stay there: the chord lands in your notebook to rebuild the whole song, and the key it reads locks the online keyboard so the right notes light up under your fingers. That chain — ear, notebook, keyboard — runs in the browser and offline in the Android app.
More Jam Jam tools
Find the chords in an MP3
Drop an audio file and Jam Jam pulls out its time-stamped chords, key, tempo and section structure — without uploading a thing.
Find and read chords
Play a chord and Jam Jam names it, lists the notes it hears and draws it on your instrument.
Your online chord songbook
Import a song, transpose it, pick your fingering — and let the lyrics scroll on their own while you sing.
Guides & tips
Short, no-nonsense guides to play, tune and find chords faster — each one backed by a Jam Jam tool you can open right away.
Chord detection FAQ
Can it really find the chords I play?
Yes. It listens through your microphone and names the chord in real time, then shows the notes it hears — instantly, as you play.
Does it work for piano and guitar?
Yes, for any instrument. It recognises 14 chord qualities — major, minor, seventh, suspended, diminished and more — on each of the 12 keys, straight from the sound.
Is my audio sent to a server?
No. The audio is analysed on your device and never uploaded — your playing stays private.