Ace-Step-1.5-Api-server-UI Turns Browser Into Local AI Music Studio

A colossal browser tab made of solid glass with glowing soundwave lines that shimmer in neon cyan soft magenta and warm amber.

Tritant has released Ace-Step-1.5-Api-server-UI, a visual interface that turns the ACE-Step 1.5 music generation model into a full-featured local studio. The tool wraps the model’s API server in a single HTML file, so you don’t need to install any extra software. It adds multi-track editing, batch generation, and exclusive base model modes for remixing and stem extraction.

Tritant built this interface to make ACE-Step 1.5’s powerful capabilities easier to control directly from a browser. The project bundles text-to-music composition, style transfer, and inpainting into one clean timeline view. It’s designed for anyone running the model locally who wants a simple, plug-and-play production environment without complex setups.

Studio-style controls for every music task

Key features of the interface
  • Text-to-music generation with full controls.
  • Style transfer from a reference audio.
  • Selective inpainting on a waveform view.
  • Add instruments, isolate stems, or complete tracks.
  • Multi-track timeline with solo, mute, and volume.
  • Persistent settings saved in your browser.
  • Batch generation and multi-LoRA support.

Musicians and producers get a DAW-free environment for composing and remixing. AI hobbyists can experiment with music generation right in a browser tab. Privacy-minded users work entirely offline with no cloud uploads.

What you’ll need to get started

The interface is a single HTML file connected to ACE-Step’s local API on port 8001. You need to install ACE-Step 1.5 first and download the base model for Lego, Extract, or Complete modes. Use a modern browser; all settings are saved in your browser’s local storage.

"A single-file HTML/JS interface for — the open-source music generation model. No installation required beyond ACE-Step itself." — Source: GitHub