What is Stable Diffusion?
Stable Diffusion is an image & design tool and completely free. Open-source image generation you can run anywhere, tune and own. We rate it 8.9/10 after hands-on testing. Because it is open source (OpenRAIL-M), you can run it yourself and keep full control of your data.
Stable Diffusion at a glance
| Category | Image & Design |
|---|---|
| Pricing | Free |
| Free version | ✓ Yes |
| Open source | ✓ OpenRAIL-M |
| GitHub stars | ★ 41k |
| Our score | 8.9/10 |
| Partner deal | — |
Why we rate Stable Diffusion
- Has a genuinely free version — no credit card to start.
- Open source (OpenRAIL-M) — self-hostable and yours to modify.
- Backed by a large community — 41k GitHub stars.
Stable Diffusion FAQ
Is Stable Diffusion free?
Yes. Stable Diffusion is completely free to use.
Is Stable Diffusion open source?
Yes — Stable Diffusion is open source under the OpenRAIL-M license and can be self-hosted.
What are the best Stable Diffusion alternatives?
We track 21 other image & design tools you can compare with Stable Diffusion in the directory.
How do we rate Stable Diffusion?
We score Stable Diffusion 8.9 out of 10 after hands-on testing, weighing the free tier, output quality, ease of use and value. Scores are decided before any partnership and never bought.
