Play mode
TJA Chart Player
Pick a .tja and its matching audio to play instantly. Files are processed entirely in your browser — nothing is uploaded to our servers — and it uses no credits.
Or paste TJA content directly
Chart info
Keyboard play mode (DFJK) needs a physical keyboard; on mobile you can browse the chart and use autoplay.
Compare variants
All variants scroll in sync; 🔊 marks the one you hear. Use the transport above for play, seek and speed.Chart variants
Alternate density versions of the same song — try each one and pick the official chart (downloads and videos will use it).GOGO Editor
Drag to paint the measures that should be GOGO (chorus bonus) sections; saving applies to every difficulty and updates the chart file.Chart overview
Graphics rendering by tja-tools(MIT license).
Chart and audioboth are loaded before playing. Shift-JIS encoded .tja files are detected automatically.