Create full-length songs with vocals and instrumentals using DiffRhythm, the revolutionary open-source AI music generator. Try it free online — no signup required.
DiffRhythm is a groundbreaking open-source AI music generation tool developed by researchers at Northwestern Polytechnical University. Released in March 2025 under the Apache 2.0 license, it represents a major leap in AI-powered music creation.
Full-Length Songs
Generate complete songs up to 4 minutes and 45 seconds with both vocals and instrumentals in one process.
Lightning Fast
Create full songs in as little as 10 seconds using advanced latent diffusion technology.
Synchronized Vocals
AI-generated vocals that stay perfectly in sync with the instrumental accompaniment.
Multi-Language
Supports both English and Chinese lyrics with natural pronunciation and musical styling.
Open Source
Free to use under Apache 2.0 license with full access to code and models.
Style Control
Use text prompts to define the genre, mood, and musical style of your creations.
Get started creating AI music in just four simple steps.
Write your song lyrics or use existing text. For best results, include timestamps to sync vocals with the beat.
Describe the musical style or genre you want — pop, rock, electronic, jazz, and more.
Click generate and wait approximately 10 seconds for your full-length AI-created song.
Download your creation in high-quality audio format and share with the world.
Compare free DiffRhythm with our professional AI music service.
| Feature | DiffRhythm (Free) | MakeBestMusic Pro ⭐ |
|---|---|---|
| Price | Free (Open Source) | From $9.99/month |
| Song Length | Up to 4:45 | Up to 8:00 |
| Generation Speed | ~10 seconds | ~5 seconds |
| Voice Quality | Good | Studio+ Quality |
| Cloud-Based | ✗ Requires 8GB+ GPU | ✓ No hardware needed |
| Commercial License | Limited / Unclear | Full rights included |
| Customer Support | ✗ Community only | Priority 24/7 |
| Style Controls | Basic text prompts | Advanced fine-tuning |
While DiffRhythm is impressive for a free tool, users often encounter these challenges:
Hardware Requirements
Requires minimum 8GB VRAM for local installation. Cloud demos may have queue times and usage limits during peak hours.
Quality Variations
Vocal quality may not match commercial services. Output consistency can vary between generations.
Limited Controls
Fewer customization options compared to paid alternatives. Basic style prompts only.
Commercial Use Unclear
While the code is Apache 2.0, commercial rights for generated music may have additional considerations.
Everything you need to know about DiffRhythm and AI music generation.
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