kitio.aiStable Diffusion web UI vs CHARL-E
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 CHARL-E 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
- One-click Stable Diffusion install
- Automatic weight download
- Sampler and seed settings
- Gallery of generated images
- Fully offline generation
| Feature | Stable Diffusion web UI | CHARL-E |
|---|---|---|
| Best for | Popular open-source browser interface for local Stable Diffusion | One-click Mac app for running Stable Diffusion offline |
| Category | Image | Image |
| Pricing model | Free | Free |
| Starting price | Free | Free |
| Free plan | Yes, fully free | Yes, fully free |
| Made by | AUTOMATIC1111 | Charlie Holtz |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Stable Diffusion web UI starts at Free and CHARL-E 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
CHARL-E
- Free and open source
- Private, runs offline
- No technical setup needed
- Requires an M1 or M2 Mac
- Only basic generation settings
- Can be slow on lower-end hardware
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 CHARL-E if you want:
- Free and open source
- Private, runs offline
- No technical setup needed
Watch out: requires an m1 or m2 mac.
Stable Diffusion web UI vs CHARL-E FAQ
What is the difference between Stable Diffusion web UI and CHARL-E?
Stable Diffusion web UI: Popular open-source browser interface for local Stable Diffusion. CHARL-E: One-click Mac app for running Stable Diffusion offline. Both are image tools.
Is Stable Diffusion web UI or CHARL-E cheaper?
Stable Diffusion web UI starts at Free and CHARL-E starts at Free. Check both pricing pages for current plans.
Do Stable Diffusion web UI and CHARL-E have free plans?
Stable Diffusion web UI: Yes, fully free. CHARL-E: Yes, fully free.
Who makes Stable Diffusion web UI?
Stable Diffusion web UI is made by AUTOMATIC1111.
Who makes CHARL-E?
CHARL-E is made by Charlie Holtz, based in United States.
Which should I choose, Stable Diffusion web UI or CHARL-E?
Choose Stable Diffusion web UI if you value free and fully local and huge extension library. Choose CHARL-E if you value free and open source and private, runs offline.