HeartMuLa is an open-source AI music generator that transforms text prompts, lyrics, moods, and style ideas into complete songs with vocals and instrumental arrangements. It supports multiple languages, genres, structured lyrics, and flexible style controls for creating music for videos, podcasts, games, social media, and personal projects.

Creators can generate songs online, while developers can download the Apache 2.0-licensed 3B-parameter model for local deployment and greater control.