What is Stable Diffusion WebUI used for?

Stable Diffusion WebUI is a Gradio-based browser interface for running Stable Diffusion image generation locally. It is a good fit for local AI image generation and experimentation, and upscaling and restoring existing images.

Is Stable Diffusion WebUI open source?

Yes. Stable Diffusion WebUI is open source under the AGPL-3.0 licence. Its source code is on GitHub at AUTOMATIC1111/stable-diffusion-webui and is written mainly in Python.

Is Stable Diffusion WebUI free?

Yes. Stable Diffusion WebUI is open source, so the software itself is free to use.

Can I self-host Stable Diffusion WebUI?

Yes. Stable Diffusion WebUI can be self-hosted on your own server or infrastructure; there is no official hosted version.

What is Stable Diffusion WebUI an alternative to?

Stable Diffusion WebUI is an open-source alternative to Midjourney, Leonardo.Ai, Ideogram and Adobe Firefly. Other open-source alternatives to Midjourney include SD.Next, ComfyUI and InvokeAI.

Is Stable Diffusion WebUI actively maintained?

The most recent commit to Stable Diffusion WebUI was on 2 March 2026, and the latest release is v1.10.1, published on 9 February 2025. The project has 165k stars on GitHub.

Stable Diffusion WebUI: open-source AI tools

About Stable Diffusion WebUI

Stable Diffusion web UI, created by AUTOMATIC1111, is a browser interface for Stable Diffusion built with the Gradio library. It lets you generate images from text prompts or from existing images on your own hardware, and it has become a common base for community extensions. It is written in Python with PyTorch and released under the AGPL-3.0 license.

The feature list includes txt2img and img2img modes, inpainting and outpainting, color sketch, prompt matrix, a Stable Diffusion upscale mode, loopback processing, X/Y/Z plots for comparing parameters, and textual inversion with multiple embeddings. Prompt syntax lets you weight parts of the text, and the Extras tab bundles face restoration with GFPGAN and CodeFormer plus upscalers such as RealESRGAN, ESRGAN, SwinIR and LDSR. A one-click install script exists, though Python and git must be installed first, and the README mentions support for video cards with 4 GB of memory.

Key features

Text-to-image and image-to-image generation
Inpainting and outpainting editing modes
Prompt weighting and prompt matrix tools
Textual inversion embedding training
Face restoration and upscaling in Extras tab
X/Y/Z plots for comparing settings

Good fit for

→Local AI image generation and experimentation
→Upscaling and restoring existing images

Built with: Python
Tags: stable-diffusion; image-generation; gradio; ai-art; txt2img; img2img; python; upscaling

Stable Diffusion WebUI: questions and answers

What is Stable Diffusion WebUI used for?: Stable Diffusion WebUI is a Gradio-based browser interface for running Stable Diffusion image generation locally. It is a good fit for local AI image generation and experimentation, and upscaling and restoring existing images.
Is Stable Diffusion WebUI open source?: Yes. Stable Diffusion WebUI is open source under the AGPL-3.0 licence. Its source code is on GitHub at AUTOMATIC1111/stable-diffusion-webui and is written mainly in Python.
Is Stable Diffusion WebUI free?: Yes. Stable Diffusion WebUI is open source, so the software itself is free to use.
Can I self-host Stable Diffusion WebUI?: Yes. Stable Diffusion WebUI can be self-hosted on your own server or infrastructure; there is no official hosted version.
What is Stable Diffusion WebUI an alternative to?: Stable Diffusion WebUI is an open-source alternative to Midjourney, Leonardo.Ai, Ideogram and Adobe Firefly. Other open-source alternatives to Midjourney include SD.Next, ComfyUI and InvokeAI.
Is Stable Diffusion WebUI actively maintained?: The most recent commit to Stable Diffusion WebUI was on 2 March 2026, and the latest release is v1.10.1, published on 9 February 2025. The project has 165k stars on GitHub.