kitio.aiStable Diffusion web UI vs Stable Diffusion WebUI Forge
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Stable Diffusion web UI starts at Free and Stable Diffusion WebUI Forge 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
- Text-to-image and img2img
- Inpainting
- Extensions ecosystem
- Upscaling
- Prompt matrix and X/Y plots
- Lower VRAM use
- FLUX support
- Built-in ControlNet
- A1111 extension support
- One-click Windows package
| Feature | Stable Diffusion web UI | Stable Diffusion WebUI Forge |
|---|---|---|
| Best for | Popular open-source browser interface for local Stable Diffusion | Faster fork of the AUTOMATIC1111 interface with newer model support |
| Category | Image | Image |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | AUTOMATIC1111 | lllyasviel |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Stable Diffusion web UI starts at Free and Stable Diffusion WebUI Forge 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 web UI
- Free and fully local
- Huge extension library
- Familiar tab layout
- Slow to support new models
- Setup needs some tech skill
- Development has slowed
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
Which one should you choose?
Choose Stable Diffusion web UI if you want:
- Free and fully local
- Huge extension library
- Familiar tab layout
Watch out: slow to support new models.
Choose Stable Diffusion WebUI Forge if you want:
- Faster than the original UI
- Runs on smaller GPUs
- Familiar interface
Watch out: some extensions incompatible.
Stable Diffusion web UI vs Stable Diffusion WebUI Forge FAQ
What is the difference between Stable Diffusion web UI and Stable Diffusion WebUI Forge?
Stable Diffusion web UI: Popular open-source browser interface for local Stable Diffusion. Stable Diffusion WebUI Forge: Faster fork of the AUTOMATIC1111 interface with newer model support. Both are image tools.
Is Stable Diffusion web UI or Stable Diffusion WebUI Forge cheaper?
Stable Diffusion web UI starts at Free and Stable Diffusion WebUI Forge starts at Free. Check both pricing pages for current plans.
Do Stable Diffusion web UI and Stable Diffusion WebUI Forge have free plans?
Stable Diffusion web UI: Yes, fully free. Stable Diffusion WebUI Forge: Yes, fully free.
Who makes Stable Diffusion web UI?
Stable Diffusion web UI is made by AUTOMATIC1111.
Who makes Stable Diffusion WebUI Forge?
Stable Diffusion WebUI Forge is made by lllyasviel.
Which should I choose, Stable Diffusion web UI or Stable Diffusion WebUI Forge?
Choose Stable Diffusion web UI if you value free and fully local and huge extension library. Choose Stable Diffusion WebUI Forge if you value faster than the original ui and runs on smaller gpus.