Updated 27 October, 2025 · Toulouse
Stable Diffusion WebUI Forge is the only stable and maintained version of the SD Web UI that is compatible with macOS.
SD Web UI Versions
- Stable Diffusion web UI · Jul 27, 2024
A web interface for Stable Diffusion, implemented using Gradio library.
No longer maintained.
- Stable Diffusion WebUI Forge · Jun 26, 2025
Stable Diffusion WebUI Forge is a platform on top of the original Stable Diffusion WebUI by AUTOMATIC1111, to make development easier, optimize resource management, speed up inference, and study experimental features.
Forge is currently based on SD-WebUI 1.10.1 at this commit. (Because original SD-WebUI is almost static now, Forge will sync with original WebUI every 90 days, or when important fixes.)
- Stable Diffusion WebUI Forge/reForge · Oct 25, 2025
The author specifically recommends using Classic or Neo for stability (implying that reForge will be unstable).
Stable Diffusion WebUI Forge/reForge is a platform on top of Stable Diffusion WebUI (based on Gradio) to make development easier, optimize resource management, speed up inference, and study experimental features.
Forge/reForge backend removes all WebUI's codes related to resource management and reworked everything. All previous CMD flags like medvram, lowvram, medvram-sdxl, precision full, no half, no half vae, attention_xxx, upcast unet, ... are all REMOVED. Adding these flags will not cause error but they will not do anything now.
- Stable Diffusion WebUI Forge - Classic · Oct 26, 2025
Forge Classic: https://github.com/Haoming02/sd-webui-forge-classic, from @Haoming02 with a lot of optimizations and features, from reforge, forge, etc based on old backend of forge.
"Classic" mainly serves as an archive for the "previous" version of Forge, which was built on Gradio 3.41.2 before the major changes (see the original announcement) were introduced. Additionally, this fork is focused exclusively on SD1 and SDXL checkpoints, having various optimizations implemented, with the main goal of being the lightest WebUI without any bloatwares.
- Stable Diffusion WebUI Forge - Neo · Oct 27, 2025
Forge Neo: https://github.com/Haoming02/sd-webui-forge-classic/tree/neo, from @Haoming02. It is a continuation of Forge2 (so Flux, fp8, gguf, etc) but with more features (wan 2.2, Qwen Image, Nunchaku, etc), aimed on optimizations and new features.
"Neo" mainly serves as an continuation for the "latest" version of Forge, which was built on Gradio 4.40.0 before lllyasviel became too busy... Additionally, this fork is focused on optimization and usability, with the main goal of being the lightest WebUI without any bloatwares.
- ersatzForge · Oct 26, 2025
ersatzForge: https://github.com/DenOfEquity/ersatzForge, from DenOfEquity, based on Forge2, but as he says, with (experimental, opinionated) changes to Forge2 webUI.
a backup of my local (experimental, opinionated) changes to Forge2 webUI
Notes on how to get the best results from Stable Diffusion using Automatic1111 on an iMac M4.
Installation
These instructions use bash (macOS uses the ZSH shell by default)
chsh -s /bin/bash # change to bash before continuing
chsh -s /bin/zsh # change back to ZSH when done
These instructions assume that you are familiar with Git and Github.
We will install Forge in the user's applications folder.
mkdir -p ~/Applications && cd ~/Applications
git clone git@github.com:lllyasviel/stable-diffusion-webui-forge.git
Check if brew is installed:
brew --version
If necessary, go to brew.sh, copy the prompt and paste it into Terminal.
Install ASDF:
brew install asdf
Add ASDF to the user's profile and restart the session:
. "$HOME/.asdf/asdf.sh"
. "$HOME/.asdf/completions/asdf.bash"
export PATH="$HOME/.asdf/shims:$HOME/.asdf/bin:$PATH"
{
echo -e ". $(brew --prefix asdf)/libexec/asdf.sh"
cat ~/.profile
} > ~/.profile.tmp && mv ~/.profile.tmp ~/.profile
source ~/.profile
asdf version
Make sure Python plugin is installed:
asdf plugin add python
cd ~/Applications/stable-diffusion-webui-forge
asdf install python 3.10.14 # install Python 3.10.14, takes a long time
asdf local python 3.10.14 # just your Forge project
python --version # check
fix runtime errors
cd ~/Applications/stable-diffusion-webui-forge
# 1. svglib install failure (pycairo build error)
brew install pkg-config cairo cmake
source venv/bin/activate
pip install svglib
pip install joblib
fix errors two
brew install xz
asdf uninstall python 3.10.14
export LDFLAGS="-L/opt/homebrew/opt/xz/lib"
export CPPFLAGS="-I/opt/homebrew/opt/xz/include"
export PKG_CONFIG_PATH="/opt/homebrew/opt/xz/lib/pkgconfig"
asdf install python 3.10.14
cd ~/Applications/stable-diffusion-webui-forge
rm -rf venv
python -m venv venv
source venv/bin/activate
pip install --upgrade pip
./webui.sh
Symlinks
The point is to keep anything that's added to the program folder out of the program folder.
This way, it's possible to share models etc., between different installations.
Configuration
The following files are stored in this repo, to make configuration easier:
config.json- settingsui-config.json- image-specific settings (saved from Other › Defaults)user.css- any user-created CSS
src="/Volumes/External/Repositories/stable-diffusion"
dest="/Users/Main/Applications/stable-diffusion-webui-forge"
rm -rf "$dest/user.css"
ln -s "$src/aliases - forge/user.css" "$dest/user.css"
rm -rf "$dest/config.json"
ln -s "$src/aliases - forge/config.json" "$dest/config.json"
rm -rf "$dest/ui-config.json"
ln -s "$src/aliases - forge/ui-config.json" "$dest/ui-config.json"
Models & Extensions
src="/Volumes/External/Stable Diffusion"
dest="/Users/Main/Applications/stable-diffusion-webui-forge"
rm -rf "$dest/models"
ln -s "$src/models" "$dest/models"
rm -rf "$dest/embeddings"
ln -s "$src/models/embeddings" "$dest/embeddings"
rm -rf "$dest/outputs"
ln -s "$src/outputs" "$dest/outputs"
rm -rf "$dest/extensions"
ln -s "$src/extensions" "$dest/extensions"
Notification Sound
rm -rf "$dest/notification.mp3"
ln -s "$src/notification sounds/notification.mp3" "$dest/notification.mp3"
Extensions
Install from URL then reload UI:
Follow Up
https://github.com/AUTOMATIC1111/stable-diffusion-webui/wiki/features
https://www.aiarty.com/stable-diffusion-prompts/stable-diffusion-prompt-guide.htm
Microsoft edge
- system & performance › performance
- "never put these sites to sleep" —› add ip address