Stable Diffusion Forge
image-gen12,695AGPL-3.0

Stable Diffusion Forge

Enhanced fork of AUTOMATIC1111's WebUI with 2x faster inference, lower VRAM usage, and Flux support.

Updated Jun 7, 2026
Website GitHub Docs
Platforms
linux, windows, macos
Pricing
free-open-source
Status
active
License
AGPL-3.0

What it does

Core capabilities at a glance

  • Up to 2x faster inference than AUTOMATIC1111
  • Lower VRAM usage with optimized attention
  • Native Flux model support
  • Improved ControlNet with unified interface
  • Photopea online image editor integration
  • Backward compatible with all WebUI extensions

Deep dive

The full breakdown - performance, comparisons, and setup

Stable Diffusion Forge

Stable Diffusion Forge (SD-WebUI-Forge) is the performance-optimized fork of AUTOMATIC1111 that everyone should be using instead. Same interface, same extensions, but significantly faster and more memory efficient.

What it is

Forge is maintained by lllyasviel (the creator of ControlNet) and focuses on performance improvements while maintaining full compatibility with AUTOMATIC1111's extension ecosystem. It was the first UI to add native Flux model support.

How it stacks up

ForgeAUTOMATIC1111ComfyUIFooocus
Speed2x A1111BaselineBestGood
VRAMLowHighLowMedium
Flux supportNativeExtensionNativeNative
ExtensionsAll A1111500+5000+ nodesFew
Best forA1111 upgradeFamiliarityPower usersBeginners

Get started

git clone https://github.com/lllyasviel/stable-diffusion-webui-forge
cd stable-diffusion-webui-forge
./webui.sh

When to use something else

  • Maximum control: ComfyUI for complex workflows
  • Beginner friendly: Fooocus for one-click generation
  • Canvas editing: InvokeAI for inpainting

Frequently asked

Quick answers to common questions

What is Stable Diffusion Forge?

Stable Diffusion Forge is a image-gen tool for local AI workloads. Enhanced fork of AUTOMATIC1111's WebUI with 2x faster inference, lower VRAM usage, and Flux support.

Is Stable Diffusion Forge free and open source?

Yes, Stable Diffusion Forge has 12,695 GitHub stars and is licensed under AGPL-3.0. You can self-host it for free on linux, windows, macos.

What platforms does Stable Diffusion Forge support?

Stable Diffusion Forge runs on linux, windows, macos.

What hardware do I need for Stable Diffusion Forge?

The hardware requirements depend on which models you run. Check our hardware directory for compatible GPUs and systems. Stable Diffusion Forge has 12,695 GitHub stars and an active community.

Does Stable Diffusion Forge support GPU acceleration?

Stable Diffusion Forge supports GPU acceleration via CUDA, Metal, or Vulkan depending on your platform. For the best performance, pair it with an NVIDIA RTX 4090 or 5090.

What are the best alternatives to Stable Diffusion Forge?

Popular alternatives include other image-gen tools in our directory. Browse our full collection at /tool for comparisons, community reviews, and benchmark data to find the right fit for your workflow.

How much does Stable Diffusion Forge cost?

Stable Diffusion Forge is free-open-source. It is completely free and open source to self-host.

Pairs well with

Complementary tools, models, and hardware

Comments coming soon

Configure NEXT_PUBLIC_GISCUS_REPO_ID and NEXT_PUBLIC_GISCUS_CATEGORY_ID at giscus.app to enable.