kitio.aiStable Diffusion web UI vs Krita AI Diffusion
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 Krita AI Diffusion 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
- Selection inpainting
- Live painting mode
- Control layers
- Upscaling
- Regional prompts
| Feature | Stable Diffusion web UI | Krita AI Diffusion |
|---|---|---|
| Best for | Popular open-source browser interface for local Stable Diffusion | Free plugin that adds AI generation and inpainting to Krita |
| Category | Image | Image |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | AUTOMATIC1111 | Acly |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Both offer: Upscaling.
Pricing compared
Stable Diffusion web UI starts at Free and Krita AI Diffusion 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
Krita AI Diffusion
- Fits a painter's workflow
- Free and open source
- Automatic backend setup
- Needs Krita and a GPU
- Large model downloads
- Fewer options than raw ComfyUI
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 Krita AI Diffusion if you want:
- Fits a painter's workflow
- Free and open source
- Automatic backend setup
Watch out: needs krita and a gpu.
Stable Diffusion web UI vs Krita AI Diffusion FAQ
What is the difference between Stable Diffusion web UI and Krita AI Diffusion?
Stable Diffusion web UI: Popular open-source browser interface for local Stable Diffusion. Krita AI Diffusion: Free plugin that adds AI generation and inpainting to Krita. Both are image tools.
Is Stable Diffusion web UI or Krita AI Diffusion cheaper?
Stable Diffusion web UI starts at Free and Krita AI Diffusion starts at Free. Check both pricing pages for current plans.
Do Stable Diffusion web UI and Krita AI Diffusion have free plans?
Stable Diffusion web UI: Yes, fully free. Krita AI Diffusion: Yes, fully free.
Who makes Stable Diffusion web UI?
Stable Diffusion web UI is made by AUTOMATIC1111.
Who makes Krita AI Diffusion?
Krita AI Diffusion is made by Acly.
Which should I choose, Stable Diffusion web UI or Krita AI Diffusion?
Choose Stable Diffusion web UI if you value free and fully local and huge extension library. Choose Krita AI Diffusion if you value fits a painter's workflow and free and open source.