kitio.aiStable Diffusion WebUI Forge vs SwarmUI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Stable Diffusion WebUI Forge starts at Free and SwarmUI starts at Free. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Lower VRAM use
- FLUX support
- Built-in ControlNet
- A1111 extension support
- One-click Windows package
- Simple generate tab
- Built-in ComfyUI workflows
- Grid comparisons
- Multi-GPU support
- Video model support
| Feature | Stable Diffusion WebUI Forge | SwarmUI |
|---|---|---|
| Best for | Faster fork of the AUTOMATIC1111 interface with newer model support | Open-source image generation UI with a ComfyUI engine underneath |
| Category | Image | Image |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | lllyasviel | mcmonkey |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Stable Diffusion WebUI Forge starts at Free and SwarmUI starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Plans
Everything
$0
100% free to use. No paid plans to pick between.
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Stable Diffusion WebUI Forge
- Faster than the original UI
- Runs on smaller GPUs
- Familiar interface
- Some extensions incompatible
- Update cadence is irregular
- Still needs local setup
SwarmUI
- Easier than raw ComfyUI
- Supports new models quickly
- Can use multiple GPUs
- Smaller community than A1111
- Local setup required
- Docs assume some knowledge
Which one should you choose?
Choose Stable Diffusion WebUI Forge if you want:
- Faster than the original UI
- Runs on smaller GPUs
- Familiar interface
Watch out: some extensions incompatible.
Choose SwarmUI if you want:
- Easier than raw ComfyUI
- Supports new models quickly
- Can use multiple GPUs
Watch out: smaller community than a1111.
Stable Diffusion WebUI Forge vs SwarmUI FAQ
What is the difference between Stable Diffusion WebUI Forge and SwarmUI?
Stable Diffusion WebUI Forge: Faster fork of the AUTOMATIC1111 interface with newer model support. SwarmUI: Open-source image generation UI with a ComfyUI engine underneath. Both are image tools.
Is Stable Diffusion WebUI Forge or SwarmUI cheaper?
Stable Diffusion WebUI Forge starts at Free and SwarmUI starts at Free. Check both pricing pages for current plans.
Do Stable Diffusion WebUI Forge and SwarmUI have free plans?
Stable Diffusion WebUI Forge: Yes, fully free. SwarmUI: Yes, fully free.
Who makes Stable Diffusion WebUI Forge?
Stable Diffusion WebUI Forge is made by lllyasviel.
Who makes SwarmUI?
SwarmUI is made by mcmonkey.
Which should I choose, Stable Diffusion WebUI Forge or SwarmUI?
Choose Stable Diffusion WebUI Forge if you value faster than the original ui and runs on smaller gpus. Choose SwarmUI if you value easier than raw comfyui and supports new models quickly.