Start with a feeling.
“Late-night deep house, warm minor ninths.” Describe what you have in mind, then listen and adjust. Try “make the third chord darker” or “longer chords, more space.” Chordy checks and voices the AI’s chord suggestions locally.
CHORDYFree download ↓Chordy BYOK · Free forever
Try a mood, explore a progression, or change a single note. Chordy is a free app and plugin for finding musical ideas and making them your own.
macOS · AU / VST3 / Standalone · v1.0.0
For cloud AI, bring your own provider account and API key. Or start offline with the built-in progression library.

A sketchpad for harmony
“Late-night deep house, warm minor ninths.” Describe what you have in mind, then listen and adjust. Try “make the third chord darker” or “longer chords, more space.” Chordy checks and voices the AI’s chord suggestions locally.
Hear what an inversion does. Turn a held chord into an arpeggio, loosen the timing, or move a note in the piano roll. Keep what you like and undo the rest.
Drag the progression into your DAW and try it with a piano, a pad or the synth already in your session. Switch on Bass only for a matching bass line. The arrangement is yours to take from there.
Chordy BYOK · Free forever
Use Google Gemini, Anthropic Claude, OpenAI, OpenRouter or Ollama. Choose a cloud provider and connect your own API key, or run a model locally on your Mac.
Chordy BYOK is free forever. Cloud AI usage is handled through your own provider account, with its own charges and limits. The 43 built-in progressions work offline without an account or key.
How providers and keys work