kitio.aiStable Diffusion web UI vs NMKD Stable Diffusion GUI
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 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
- Text-to-image and img2img
- Inpainting
- Extensions ecosystem
- Upscaling
- Prompt matrix and X/Y plots
- 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 web UI | NMKD Stable Diffusion GUI |
|---|---|---|
| Best for | Popular open-source browser interface for local Stable Diffusion | 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 | AUTOMATIC1111 | N00MKRAD |
| 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 NMKD Stable Diffusion GUI starts at Free. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
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
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 web UI if you want:
- Free and fully local
- Huge extension library
- Familiar tab layout
Watch out: slow to support new models.
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 web UI vs NMKD Stable Diffusion GUI FAQ
What is the difference between Stable Diffusion web UI and NMKD Stable Diffusion GUI?
Stable Diffusion web UI: Popular open-source browser interface for local Stable Diffusion. NMKD Stable Diffusion GUI: Windows app for running Stable Diffusion locally on your own GPU. Both are image tools.
Is Stable Diffusion web UI or NMKD Stable Diffusion GUI cheaper?
Stable Diffusion web UI starts at Free and NMKD Stable Diffusion GUI starts at Free. Check both pricing pages for current plans.
Do Stable Diffusion web UI and NMKD Stable Diffusion GUI have free plans?
Stable Diffusion web UI: Yes, fully free. NMKD Stable Diffusion GUI: Yes, fully free.
Who makes Stable Diffusion web UI?
Stable Diffusion web UI is made by AUTOMATIC1111.
Who makes NMKD Stable Diffusion GUI?
NMKD Stable Diffusion GUI is made by N00MKRAD.
Which should I choose, Stable Diffusion web UI or NMKD Stable Diffusion GUI?
Choose Stable Diffusion web UI if you value free and fully local and huge extension library. Choose NMKD Stable Diffusion GUI if you value runs fully offline and no complicated installation.