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NMKD Stable Diffusion GUI vs Stable Diffusion WebUI Forge: catalog facts
NMKD Stable Diffusion GUI	Stable Diffusion WebUI Forge
Free Distributed on itch.io at a name-your-own-price rate.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows	Windows, macOS, Linux
Dependencies included, no manual setup Supports custom models, VAEs, LoRA and Textual Inversion	Adds resource-management options and experimental generation features.
Windows only Speed depends on your GPU	Requires compatible models and suitable local hardware.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.