Jam JamAbout Jam Jam
Jam Jam is a free music app to tune, find the chords of a song, keep a songbook and play the keyboard. It runs in the browser, on Android, and on iOS in public beta. It is published in France by Titouan Wattelet, a sole trader.
Who publishes Jam Jam
Jam Jam is published by an individual based in France, as a sole trader. The site and the service are hosted in France. The legal notice gives the full identity of the publisher and the host.
- Publisher Titouan Wattelet, Sole trader (French “entrepreneur individuel”, micro-enterprise)
- Address 173 rue de Courcelles, 75017 Paris, France
- Host OVH SAS, 2 rue Kellermann, 59100 Roubaix, France
What Jam Jam does
Each need covered has its own page, saying what the tool does, on which platform, and what is free.
- Free online tunerA precise chromatic tuner for guitar, ukulele, bass and violin: right in your browser.
- Real-time AI chord detectionPlay an instrument and Jam Jam’s AI names the chord and notes it hears, live, from your microphone.
- Find the chords in an MP3 with AIDrop an audio file and Jam Jam’s AI pulls out its time-stamped chords, key, tempo and section structure: in your browser, or on our server if you want it faster.
- Your online chord songbookImport a song, transpose it, pick your fingering, and let the lyrics scroll on their own while you sing.
- Import a song into your songbookA link, a file, a photo: chords and lyrics laid out again in your songbook.
- Make a karaoke from your own songsYour lyrics synced to your track, full screen or as an MP4 video to share.
- Transpose a song and find your capoShift the key by −6 to +6 semitones: chords, melody and fingering diagrams follow, and your lyrics stay untouched.
- Read a tab that actually playsPaste a tab you found on a forum: Jam Jam reads it, plays it at your speed and can show it on a staff instead.
- Online piano keyboardA free virtual piano you can play in your browser: with chords, scales and 142 instrument sounds.
- MIDI keyboard onlinePlug your MIDI keyboard into the browser and play right away, velocity and sustain included.
- Learn piano onlineFalling notes, the right note awaited, then rhythm and tempo, passage by passage.
- Online MIDI drum padsEight pads, 48 drum packs across 14 genres: tap a beat in your browser, or play it on a MIDI controller.
- Free online metronomeA steady metronome in your browser: tempo, time signature, accents and tap tempo.
- Scales on the online keyboardChoose a key and the keyboard shows you its scale: in-key notes bright, out-of-key keys greyed, root marked.
- Find and read chords with AIPlay a chord and Jam Jam’s AI names it, lists the notes it hears and draws it on your instrument.
- Chord diagrams for 26 instrumentsThe same chord, drawn on your instrument: with the colours that tell you what each note is doing.
Verifiable principles
Usable for free
The site’s tools open with no account and nothing to install. The songbook needs a free account, with written limits: 50 songs, 10 imports, 10 exports and 15 audio file analyses per week, counter reset on Monday.
The microphone stays on your device
Microphone audio from the tuner and live chord detection is analysed on your device; it is neither recorded nor sent.
An uploaded audio file is deleted
When you choose the online analysis of an audio file, it goes to our server in France. It is neither published, nor shared, nor tied to your account, and it is deleted when processing ends. The “Where to run audio analyses” setting lets you keep everything on your device.
No ads on the web
The site and the web app show no advertising. The mobile app may show ads, never to Premium subscribers.
Numbers you can check
The numbers published on this site (chords recognised, tunings, sounds, quotas) are recounted from the app’s code by an automated check.
Platforms and languages
Jam Jam runs in the browser (jam-jam.org/app), on Android (Google Play) and on iOS in public beta through TestFlight, not yet on the App Store. The songbook syncs across these devices; offline mode is specific to the mobile apps.
Open the web app Google Play iOS beta (TestFlight)
The app is translated into 10 languages: French, English, Spanish, German, Italian, Portuguese, Dutch, Polish, Japanese and Korean.
Official profiles
Jam Jam is listed on these pages, run or claimed by the publisher: