# StemSplit

> AI-powered vocal removal and stem separation for audio professionals, DJs, karaoke creators, and music producers.

StemSplit uses state-of-the-art Demucs AI models to separate audio tracks into individual stems (vocals, drums, bass, guitar, piano, and other instruments) with professional-grade quality.

## Key Features

- **Vocal Removal**: Extract clean vocals or create karaoke/instrumental versions
- **4-Stem Separation**: Vocals, drums, bass, and other instruments
- **6-Stem Separation**: Vocals, drums, bass, guitar, piano, and other
- **YouTube Support**: Process YouTube videos directly via URL
- **Multiple Output Formats**: WAV (lossless), MP3, FLAC
- **Voice Cleaner (noise removal)**: Remove background noise, HVAC hum, room echo, and other audio artifacts from any recording. Uses DeepFilterNet neural noise reduction. Available as standalone jobs (POST /api/v1/denoise-jobs) or as an add-on to stem separation (denoiseVocals flag).
- **REST API**: Programmatic access for developers and integrations

## Free Credits

New users get **5 free minutes** when they sign up — no credit card required. That's enough to process about 1-2 full songs.

## Pricing

StemSplit uses pay-as-you-go credit-based pricing. No subscription required. Credits never expire.

- Starter: 10 minutes for $2
- Standard: 30 minutes for $5 (most popular)
- Pro: 100 minutes for $12 (best value, 20% off)
- Studio: 300 minutes for $30

Referral bonus: Get 5 free minutes when friends sign up with your referral link.

**Accepted Payment Methods:**
- Credit cards (Visa, Mastercard, American Express, Discover, JCB, UnionPay, Diners Club)
- Debit cards (all major networks)
- Apple Pay (iOS 17+, iPadOS 17+, Safari 17+ on macOS)
- Google Pay (Chrome desktop/mobile, Android)
- Cash App Pay (US only)
- All payments processed securely via Dodo Payments (PCI DSS Level 1 compliant)
- All prices in USD

**Service Availability:**
- Available globally (excluding India for Apple Pay and Google Pay)
- Cash App Pay: US only

## Documentation

- [API Documentation](/en/developers/docs): Getting started guide with code examples
- [API Reference](/en/developers/reference): Complete endpoint documentation

### SDK & Package Guides

- [Node.js SDK](/en/developers/guides/node): @stemsplit/sdk npm package — install with npm, typed TypeScript client, file uploads, polling helpers, webhook verification
- [Python SDK](/en/developers/guides/python): stemsplit-python PyPI package — install with pip, separate stems from URLs or local files, YouTube support
- [CLI](/en/developers/guides/cli): stemsplit CLI binary — install via Homebrew (macOS) or GitHub Releases, batch processing, CI/CD support
- [GitHub Actions](/en/developers/guides/github-actions): stemsplit-github-action — run stem separation from public audio URLs in CI/CD workflows

### Integration Guides

- [MCP Server](/en/developers/guides/mcp): stemsplit-mcp npm package — run stem separation inside Claude Desktop, Cursor, Cline, Windsurf, Zed via MCP (npx -y stemsplit-mcp)
- [n8n Integration](/en/developers/guides/n8n): Workflow automation with n8n community node (n8n-nodes-stemsplit)
- [Zapier Integration](/en/developers/guides/zapier): Zapier automation (6,000+ apps)
- [Make.com Integration](/en/developers/guides/make): Make.com scenarios
- [Pipedream Integration](/en/developers/guides/pipedream): Pipedream workflows
- [Power Automate Integration](/en/developers/guides/power-automate): Microsoft Power Automate / enterprise workflows
- [Discord Bot](/en/developers/guides/discord-bot): Build a Discord bot for stem separation
- [White Label API](/en/developers/guides/white-label): Embed StemSplit into your product or SaaS

### Use Case Guides

- [Audacity Workflow](/en/developers/guides/audacity): Use StemSplit with Audacity for better vocal removal
- [DJ Workflow](/en/developers/guides/dj-workflow): Create acapellas and instrumentals for Serato, Rekordbox, Traktor
- [Sample Pack Creation](/en/developers/guides/sample-packs): Extract drums, bass, vocals for sample libraries
- [OpenKJ Integration](/en/developers/guides/openkj): Build professional karaoke libraries for KJ shows
- [Karaoke Mugen Integration](/en/developers/guides/karaoke-mugen): Personal karaoke collection with synchronized lyrics
- [Music Education](/en/developers/guides/music-education): Isolate instruments for students and teachers

## Published Packages

- **@stemsplit/sdk** (npm): Official Node.js / TypeScript SDK — `npm install @stemsplit/sdk` — v0.1.0 — https://www.npmjs.com/package/@stemsplit/sdk
- **stemsplit-mcp** (npm): MCP server for AI assistants — `npx -y stemsplit-mcp` — v0.3.0 — https://www.npmjs.com/package/stemsplit-mcp
- **n8n-nodes-stemsplit** (npm): n8n community node — v0.2.1 — https://www.npmjs.com/package/n8n-nodes-stemsplit
- **stemsplit-python** (PyPI): Python SDK — v0.2.0 — https://pypi.org/project/stemsplit-python/
- **stemsplit** CLI: GitHub Releases — v1.0.0 — https://github.com/StemSplit/stemsplit-cli/releases
- **stemsplit-github-action** (GitHub): Official GitHub Action for CI/CD — `uses: StemSplit/stemsplit-github-action@v0.1.0` — v0.1.0 — https://github.com/StemSplit/stemsplit-github-action
- **demucs-onnx** (PyPI): ONNX export of Demucs models — v0.3.0 — https://github.com/StemSplit/demucs-onnx

Full release history: [Changelog](/en/developers/changelog)

## Use Cases

- [DJs](/en/use-cases/djs): Stem separation for live mixing and mashups
- [Karaoke](/en/use-cases/karaoke): Create karaoke tracks from any song
- [Content Creators](/en/use-cases/content-creators): Extract vocals for videos and podcasts

## Tools

- [Vocal Remover](/en/vocal-remover): Remove vocals from any song
- [Stem Splitter](/en/stem-splitter): Separate audio into individual stems
- [Karaoke Maker](/en/karaoke-maker): Create karaoke versions of songs
- [Acapella Maker](/en/acapella-maker): Extract vocals from tracks
- [Voice Cleaner](/en/voice-cleaner): Remove background noise from audio or video recordings

## API Overview

Base URL: `https://stemsplit.io/api/v1`

### Endpoints

- `POST /jobs` - Create stem separation job
- `GET /jobs/:id` - Get job status and download URLs
- `POST /youtube-jobs` - Create job from YouTube URL
- `GET /youtube-jobs/:id` - Get YouTube job status
- `POST /upload` - Get presigned upload URL
- `POST /webhooks` - Register webhook for job notifications
- `GET /webhooks` - List registered webhooks
- `DELETE /webhooks/:id` - Delete webhook
- `POST /denoise-jobs` - Create a standalone noise removal job
- `GET /denoise-jobs` - List noise removal jobs
- `GET /denoise-jobs/:id` - Get job status and download URL

### Authentication

All API requests require Bearer token authentication:
```
Authorization: Bearer sk_live_xxxxxxxxxxxxx
```

### Output Types

- `VOCALS` - Extract vocals only
- `INSTRUMENTAL` - Remove vocals, keep backing track
- `BOTH` - Get both vocals and instrumental
- `FOUR_STEMS` - Vocals, drums, bass, other
- `SIX_STEMS` - Vocals, drums, bass, guitar, piano, other

### Quality Settings

- `FAST` - Quick processing (~20s per minute of audio)
- `BALANCED` - Recommended for most users (~40s per minute)
- `BEST` - Highest quality, required for 6-stem separation (~60s per minute)

## Limits

- Maximum file size: 500 MB
- Maximum duration: 120 minutes
- Minimum duration: 5 seconds
- Supported formats: MP3, WAV, FLAC, M4A, OGG, WebM

## Legal

- [Terms of Service](/en/legal/terms)
- [Privacy Policy](/en/legal/privacy)

## Contact

- Website: https://stemsplit.io
- Support: support@stemsplit.io
- Contact Form: https://stemsplit.io/en/contact

## Blog Posts

StemSplit publishes 93 in-depth guides, tool comparisons, tutorials, and use-case walkthroughs. Every post is available as raw markdown for LLM ingestion by appending `.md` to its URL (e.g. `/blog/best-vocal-remover-tools.md`).

See [/llms-full.txt](https://stemsplit.io/llms-full.txt) for the complete index of all 93 posts. Most recent below:

- [Apple Music Karaoke Mode: Full Guide (2026)](https://stemsplit.io/blog/how-to-karaoke-apple-music.md)
- [Spotify Karaoke Mode: Does It Exist? (2026)](https://stemsplit.io/blog/spotify-karaoke-mode.md)
- [VocalRemover.org Alternative: Better AI Vocal Removal (2026)](https://stemsplit.io/blog/vocalremover-org-alternative.md)
- [Pitch Changer Online: Change Song Key & Speed (2026)](https://stemsplit.io/blog/pitch-changer-online.md)
- [Audio Separator MCP Server: StemSplit for Claude (2026)](https://stemsplit.io/blog/stemsplit-mcp-server-claude-cursor.md)
- [Introducing Voice Cleaner: Free AI Noise Remover (2026)](https://stemsplit.io/blog/voice-cleaner.md)
- [Best Vocal Remover 2026: 9 Tools Tested, Quality Scored](https://stemsplit.io/blog/best-vocal-remover-tools.md)
- [HT-Demucs FT to ONNX: First Working Export (2026)](https://stemsplit.io/blog/htdemucs-ft-onnx-export.md)
- [SoundCloud to Instrumental Converter (2026)](https://stemsplit.io/blog/soundcloud-to-instrumental.md)
- [YouTube to Acapella Extractor (2026)](https://stemsplit.io/blog/youtube-to-acapella.md)