kitio.aiStable Diffusion WebUI Forge vs NMKD Stable Diffusion GUI
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 NMKD Stable Diffusion GUI 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
- Text-to-image and image-to-image
- Custom models, LoRA and VAE
- InstructPix2Pix editing
- Built-in upscaling
- Prompt queue and history
- Tileable image output
| Feature | Stable Diffusion WebUI Forge | NMKD Stable Diffusion GUI |
|---|---|---|
| Best for | Faster fork of the AUTOMATIC1111 interface with newer model support | Windows app for running Stable Diffusion locally on your own GPU |
| Category | Image | Image |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | lllyasviel | N00MKRAD |
| 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 NMKD Stable Diffusion GUI 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
NMKD Stable Diffusion GUI
- Runs fully offline
- No complicated installation
- Supports custom models and LoRA
- Windows only
- Needs a capable GPU
- Unfiltered output, no content safeguards
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 NMKD Stable Diffusion GUI if you want:
- Runs fully offline
- No complicated installation
- Supports custom models and LoRA
Watch out: windows only.
Stable Diffusion WebUI Forge vs NMKD Stable Diffusion GUI FAQ
What is the difference between Stable Diffusion WebUI Forge and NMKD Stable Diffusion GUI?
Stable Diffusion WebUI Forge: Faster fork of the AUTOMATIC1111 interface with newer model support. NMKD Stable Diffusion GUI: Windows app for running Stable Diffusion locally on your own GPU. Both are image tools.
Is Stable Diffusion WebUI Forge or NMKD Stable Diffusion GUI cheaper?
Stable Diffusion WebUI Forge starts at Free and NMKD Stable Diffusion GUI starts at Free. Check both pricing pages for current plans.
Do Stable Diffusion WebUI Forge and NMKD Stable Diffusion GUI have free plans?
Stable Diffusion WebUI Forge: Yes, fully free. NMKD Stable Diffusion GUI: Yes, fully free.
Who makes Stable Diffusion WebUI Forge?
Stable Diffusion WebUI Forge is made by lllyasviel.
Who makes NMKD Stable Diffusion GUI?
NMKD Stable Diffusion GUI is made by N00MKRAD.
Which should I choose, Stable Diffusion WebUI Forge or NMKD Stable Diffusion GUI?
Choose Stable Diffusion WebUI Forge if you value faster than the original ui and runs on smaller gpus. Choose NMKD Stable Diffusion GUI if you value runs fully offline and no complicated installation.