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Stable Diffusion WebUI Forge

Free#29 of 123 in AI Image Generators

Stable Diffusion WebUI Forge: A free, open-source local UI with deep control over Stable Diffusion workflows. Ranked #29 of 123 in AI Image Generators by our editors (6.6/10); pricing: Open source; best for stable Diffusion users wanting a refined local UI.

6.6/10Editor score

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Stable Diffusion WebUI Forge6.6 Visit site

At a glance

Editor score
6.6 / 10
Pricing
Open source
Best for
Stable Diffusion users wanting a refined local UI
Paid from
Free
Text-to-image
Yes
Facts checked
20 Sep 2026

Where it wins
- ControlNet, IP-Adapter, LoRA, inpainting, and reference workflows
- Batch processing, upscaling, and high-resolution fix support
- Runs locally across Windows, macOS, Linux, and self-hosted setups
Where it doesn't
- Local installation is required through packages or from source
- The project README states that the project is under construction
- Model and generated-image licensing may vary independently from the WebUI license

Our verdict on Stable Diffusion WebUI Forge

Stable Diffusion WebUI Forge is a self-hosted web interface for Stable Diffusion models, built on Stable Diffusion WebUI and Gradio. It targets users who want local text-to-image and image-to-image generation with more control over models, references, edits, and extensions. The published feature set includes inpainting with uploaded masks, sketch and inpaint-sketch canvases, batch image-to-image processing, image upscaling, and high-resolution fix workflows. It supports Windows, macOS, Linux, web access, and self-hosted deployment.

Its standout strength is the breadth of diffusion controls available in one interface. ControlNet, IP-Adapter, reference-only methods, and LoRA support give users several ways to guide generation beyond text prompts. The extension and checkpoint-merger interfaces also support model experimentation, while the optional HTTP API allows external applications to connect to the interface. Outputs can be handled in PNG, JPEG, JPG, WebP, and AVIF formats. This makes Forge a fit for Stable Diffusion users who value configurable local workflows rather than a narrowly simplified generator.

Pricing is straightforward: the project is open source and includes a free plan, with no paid tier structure described. It is distributed under the GNU Affero General Public License and can run through supported installation packages or from source. The project README states that it is under construction, which matters for users evaluating ongoing reliability and workflow stability. Licensing also requires care: model and generated-image rights may differ from the WebUI license, so Forge is better suited to users who can review those rights independently before commercial use. Choose it for local control and experimentation; choose an alternative if you need a finished hosted service or clearly defined commercial rights for every model and output.

Your product? Our editors can test Stable Diffusion WebUI Forge in depth and publish a review, labelled as paid · from $149/mo →

Stable Diffusion WebUI Forge pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on github.com

Stable Diffusion WebUI Forge fact sheet

Free plan	Not verified
Paid from	Free
Text-to-image	Yes
Reference images	Yes
Image editing	Yes
Monthly credits	Not verified
Commercial use	Not verified
API access	Yes
Output formats	PNG, JPG, JPEG, WebP, AVIF, GIF
Deployment	Self-hosted
Platforms	Web, Windows, Linux
Support	Community, Docs
Built for	Solo, Small business, Mid-market, Enterprise (editorial estimate)
Pricing	Open source
Website	github.com
Facts checked	20 Sep 2026

Alternatives to Stable Diffusion WebUI Forge

See all Stable Diffusion WebUI Forge alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Stable Diffusion WebUI Forge for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Stable Diffusion WebUI Forge is listed in our AI Image Generators directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update