An Online Chord Game, Solo or Multiplayer
An online chord game you can open and play in seconds: ChordRunner runs in the browser, reads your real instrument, and turns chord practice into a game you actually want to repeat. Play solo through levels at your own pace, or jump into a live multiplayer session, all online, no download, MIDI keyboard or microphone.
Play chords online, right now
A chord appears, you play it, the runner keeps going. Solo or live multiplayer. No download, no signup. MIDI keyboard or microphone.
▶ Try ChordRunner Free Free in the browser - nothing to install.Play instantly, nothing to install
The best thing about an online chord game is the zero friction: you click a link and you are playing, no store page, no download, no account for the demo. That also means it works anywhere a browser does, including the locked-down laptops at school or work where you cannot install software. Your instrument plus a tab is the whole setup.
Because ChordRunner reads a real MIDI keyboard or listens through a microphone, "playing" means forming the actual chord, not tapping the right button. That is what makes it double as real chord training while it entertains.
One game, two ways to play
Flip between the solo and multiplayer sides of the same online chord game:
Solo: levels at your own pace
Work through Standard Levels one chord type at a time, from the 12 major chords upward. The game speeds up as you climb, so recall has to become automatic. Perfect for daily practice with no pressure but the clock you choose.
Solo modes and live sessions
Play through levels on your own
The solo side is a full chord trainer. Standard Levels teach one chord type at a time across all 12 keys, and other modes cover survival, custom pools, progressions and more. It is the calm, self-paced way to build the shapes, and where most players spend their practice time.
Jump into a multiplayer room
When you want stakes, the same chords become a race. A live session puts you on a shared clock with other players and a scoreboard that reorders as chords land, the online chord game turned competitive. It is the same core as a dedicated multiplayer chord game and the chord battle format.
One instrument, endless practice
Whichever side you play, the input is the same: a MIDI keyboard detected automatically through Web MIDI, or a microphone that hears your acoustic piano or guitar. Nothing to configure, nothing to install, and it all lives in one browser tab. If you are curious about playing with other people, the real-time multiplayer music learning page maps out every option.
Play the online chord game now
Open the game, connect your keyboard or allow the microphone, and start with Standard Levels solo, then try a live session when you want a race. No install, no account for the demo, playable on any computer. Ten focused minutes is enough to feel the difference.
Common questions
Is there a free online chord game I can play right now?
Yes. ChordRunner is a free online chord game that runs in the browser with no download and no signup for the demo. A chord appears, you play it on a MIDI keyboard or through your microphone, and the runner keeps going if you got it right.
Can I play the online chord game solo, or only multiplayer?
Both. You can play solo through Standard Levels and other modes at your own pace, or join a live multiplayer session and play the same chords against other players on a shared clock. It is the same game either way.
What do I need to play an online chord game?
Just a browser and an instrument. A MIDI keyboard connects automatically through Web MIDI for note-perfect feedback, or the microphone can listen to an acoustic piano or guitar and recognise your chords. No app, no account for the demo.
Does an online chord game actually teach chords?
Yes, when it reads a real instrument. Because you form the chord with your hands and get instant right-or-wrong feedback, you are training recall, not memorising a quiz. The game covers major and minor triads up through sevenths and extended chords.