Last updated 08-13-2026
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NMKD Stable Diffusion GUI
NMKD Stable Diffusion GUI runs text-to-image and image-to-image generation locally on your Windows PC using your own GPU. The itch.io download bundles dependencies so you skip manual Python setup, and version 1.11.0 ships with a Stable Diffusion 1.5 model in a 3.3 GB package or a 1.5 GB build if you bring your own checkpoints.
Unlike browser-based generators that queue jobs on remote servers, NMKD keeps everything on your hardware with no data collection. It adds LoRA training on 8 GB GPUs, InstructPix2Pix editing, RealESRGAN upscaling, and CodeFormer or GFPGAN face restoration in one desktop app. The author reports sub-2-second generations on an RTX 3090 and under one second on an RTX 4090.
Windows hobbyists, game texture artists, and creators who want uncensored local control are the main audience. Built-in prompt queues, tileable output for game assets, custom VAE and checkpoint loading, and a malware scan on downloaded models make it a full workstation tool rather than a quick online demo.
Generates images in under 1 second on an RTX 4090 and under 2 seconds on an RTX 3090
Version 1.11.0 download is 3.3 GB with SD 1.5 included or 1.5 GB without model files
LoRA training GUI works on 8 GB GPUs and replaces the older Dreambooth workflow
Built-in RealESRGAN upscaling plus CodeFormer or GFPGAN face restoration
Supports InstructPix2Pix instruction-based editing alongside text-to-image and image-to-image
Dependencies bundled with no complicated installation required on Windows
Runs entirely on your local GPU with no cloud queue or data collection
Bundles dependencies and a starter SD 1.5 model so setup takes minutes on Windows
LoRA training on 8 GB GPUs plus upscaling and face restoration in one app
Free download with optional pay-what-you-want support on itch.io
Windows only with no macOS or Linux build listed on itch.io
Latest devlog entry is from July 2023, so active development pace is unclear
3.3 GB download size is large for users on slower connections
Is NMKD Stable Diffusion GUI free?
Yes. NMKD Stable Diffusion GUI is free to download on itch.io with a name-your-own-price option. You can skip payment and go straight to the downloads, or contribute $1 to $10 to support the developer.
What platforms does NMKD Stable Diffusion GUI support?
NMKD Stable Diffusion GUI runs on Windows only. The itch.io listing lists Windows as the sole supported platform, and generation speed depends on your local NVIDIA or AMD GPU.
What download sizes does NMKD offer?
NMKD Stable Diffusion GUI version 1.11.0 is available as a 3.3 GB package that includes the SD 1.5 model, or a 1.5 GB build without model files if you supply your own checkpoints.
Does NMKD Stable Diffusion GUI support LoRA training?
Yes. NMKD Stable Diffusion GUI version 1.11.0 added LoRA and LyCORIS support plus a LoRA training GUI that works on 8 GB GPUs. The training interface replaced the older Dreambooth workflow in the app.
What image editing modes does NMKD include?
NMKD Stable Diffusion GUI supports text-to-image, image-to-image with a text prompt, and InstructPix2Pix instruction-based editing. It also includes negative prompts, attention emphasis syntax, and tileable image output for textures.
Where can I get help with NMKD Stable Diffusion GUI?
NMKD Stable Diffusion GUI has a Discord server linked on the itch.io page. The developer asks users to post in the stable-diffusion-gui channel rather than sending direct messages.