explaingit

fspecii/ace-step-ui

Analysis updated 2026-07-03

3,750JavaScriptAudience · vibe coderComplexity · 4/5LicenseSetup · hard

TLDR

A self-hosted web UI for the ACE-Step AI music model that lets you generate full songs with vocals on your own GPU, no subscriptions, no limits, your music stays private.

Mindmap

mindmap
  root((ACE-Step UI))
    Generation
      Genre tags and lyrics
      Vocals or instrumental
      Batch variations
      Seed control
    Audio tools
      Reference audio matching
      Section repainting
      Stem extraction
      Built-in editor
    Video
      Pexels background footage
      Music and video pairing
    Tech stack
      React and TypeScript
      Express and SQLite
      Gradio API bridge
    Setup
      Pinokio one-click
      NVIDIA GPU required
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Code map

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filefunction / class

What do people build with it?

USE CASE 1

Generate complete AI songs with vocals locally instead of paying for Suno or Udio.

USE CASE 2

Batch-generate multiple song variations from a single style description and pick the best.

USE CASE 3

Separate an AI-generated or uploaded track into stems (vocals, drums, bass) using Demucs.

USE CASE 4

Pair generated music with background video footage to produce a shareable video clip.

What is it built with?

JavaScriptTypeScriptReactExpressSQLitePythonFFmpeg

How does it compare?

fspecii/ace-step-uifomantic/fomantic-uiyeoman/generator-webapp
Stars3,7503,7503,750
LanguageJavaScriptJavaScriptJavaScript
Setup difficultyhardeasyeasy
Complexity4/52/52/5
Audiencevibe coderdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · hard Time to first run · 1h+

Requires an NVIDIA GPU with at least 4 GB VRAM, Python 3.10+, Node.js 18+, and FFmpeg, Pinokio launcher simplifies the process.

Open source, free to use, modify, and self-host on your own hardware.

In plain English

ACE-Step UI is a web-based front-end for generating AI music locally on your own computer, built to work alongside the ACE-Step 1.5 open-source music generation model. The idea is that instead of paying a monthly subscription to services like Suno or Udio, you run the AI model on your own hardware and use this interface to control it, keeping your music private and removing any generation limits. The interface is designed to look and feel like a music streaming app, with a library view, a bottom playback bar with waveform display, dark and light modes, and playlist management. From the generation side, you can describe the style of music you want using genre tags and a lyrics editor, and the model produces full songs up to about four minutes long, including vocals. There are also controls for instrumental-only output, batch generation of multiple variations at once, and a seed control so you can reproduce a specific result later. Beyond basic generation, the tool includes a reference audio feature where you can supply an existing audio file and have the model match its style. A repainting option lets you regenerate specific sections of a track rather than starting over. Stem extraction powered by Demucs can separate a finished track into its vocal, drum, bass, and other components. There is also a built-in audio editor for trimming and applying effects, and a video generator that pairs music with background footage from Pexels. On the technical side, the front-end is built with React and TypeScript, the back-end runs on Express with a local SQLite database, and communication with the ACE-Step model happens through its Gradio API. Requirements include an NVIDIA GPU with at least 4 GB of video memory, Node.js 18 or higher, Python 3.10 or above, and FFmpeg for audio processing. Installation can be done through Pinokio, a one-click app launcher that handles all dependencies automatically, or manually via shell scripts on Windows, macOS, and Linux. The full README is longer than what was shown.

Copy-paste prompts

Prompt 1
How do I install ace-step-ui on Windows using Pinokio, what are the steps?
Prompt 2
I have a reference audio file I like. How do I use ace-step-ui to generate music that matches its style?
Prompt 3
Show me how to use the repainting feature to replace only the chorus of a generated track.
Prompt 4
How do I extract vocal and drum stems from a finished ACE-Step track using the built-in Demucs feature?
Prompt 5
What GPU VRAM do I need to run ACE-Step UI, and how do I set the batch size to avoid running out of memory?

Frequently asked questions

What is ace-step-ui?

A self-hosted web UI for the ACE-Step AI music model that lets you generate full songs with vocals on your own GPU, no subscriptions, no limits, your music stays private.

What language is ace-step-ui written in?

Mainly JavaScript. The stack also includes JavaScript, TypeScript, React.

What license does ace-step-ui use?

Open source, free to use, modify, and self-host on your own hardware.

How hard is ace-step-ui to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is ace-step-ui for?

Mainly vibe coder.

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