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SwarmUI vs Stable Diffusion WebUI Forge: catalog facts
SwarmUI	Stable Diffusion WebUI Forge
Free The open-source software is available without a license fee. Hosting, hardware and…	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows	Windows, macOS, Linux
Supports several model families and extensible processing backends.	Adds resource-management options and experimental generation features.
Backend setup and model requirements vary by workflow.	Requires compatible models and suitable local hardware.
Downloadable app	Downloadable app
Open source	Open source
License: MIT	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 22, 2026	Official website Full listing and sources Checked September 22, 2026

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