ComfyUI vs SwarmUI

ComfyUI8.8Visit SwarmUI6.4Visit

Higher score ComfyUI #8 in AI Image Generators 8.8/10 Free plan Free plan✓ 4 of 4 features Visit ComfyUI

vs

SwarmUI #31 in AI Image Generators 6.4/10 Free plan Free plan✓ 4 of 4 features Visit SwarmUI

• ComfyUI fits best

  Advanced workflow builders

• SwarmUI fits best

  Local users combining multiple image backends

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Side by side

Feature	ComfyUI 8.8/10 Visit ↗	SwarmUI 6.4/10 Visit ↗
At a glance
Editor score	8.8	6.4
Ranking	#8 in AI Image Generators	#31 in AI Image Generators
Best for	Advanced workflow builders	Local users combining multiple image backends
Pricing model	Free plan + paid	Free
Starting price	$192/yr	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud, Self-hosted, Desktop	Self-hosted, Cloud
Platforms	Web, Windows, macOS, Linux	Web, Windows, macOS, Linux
Support	Community, Docs	Community, Docs
Integrations	4 integrations	2 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features ComfyUI 4/4 · SwarmUI 4/4
Text-to-image	✓	✓
Reference images	✓	✓
Image editing	✓	✓
API access	✓	✓
Specs
Monthly credits	Not checked yet	Not checked yet
Commercial use	Not checked yet	Not checked yet
Output formats	PNG, EXR, AVIF	PNG, JPG, WebP
Our review
Pros	Free open-source core with local and self-hosted execution Supports generation, editing, compositing, model merging, and upscaling Offers custom nodes, local APIs, reusable subgraphs, and workflow templates	ComfyUI and AUTOMATIC1111 compatibility Workflow browsing, grids, prompting, editing, and ControlNet Multi-GPU support with HTTP and WebSocket APIs
Cons	Standard does not include importing custom models Cloud workflows have runtime limits on Standard, Creator, and Pro Broad support across media types may exceed the needs of focused image users	Requires locally run AI models Self-hosted rather than a hosted subscription service Model licenses determine commercial-use rights for generated images
Our verdict	ComfyUI is an open-source, node-based AI creation engine for visual professionals, developers, and creators who want editable control over image-generation workflows. Users connect models, parameters, processing steps, and outputs in a… Read the review →	SwarmUI is a free, open-source web interface for generating images with locally run AI models, including Stable Diffusion, Flux, and other supported model families. It suits users who want one local environment for multiple image backends,… Read the review →

Strengths and trade-offs

• ComfyUI — where it wins

  • Free open-source core with local and self-hosted execution
  • Supports generation, editing, compositing, model merging, and upscaling
  • Offers custom nodes, local APIs, reusable subgraphs, and workflow templates

  Where it doesn't

  • Standard does not include importing custom models
  • Cloud workflows have runtime limits on Standard, Creator, and Pro
  • Broad support across media types may exceed the needs of focused image users

• SwarmUI — where it wins

  • ComfyUI and AUTOMATIC1111 compatibility
  • Workflow browsing, grids, prompting, editing, and ControlNet
  • Multi-GPU support with HTTP and WebSocket APIs

  Where it doesn't

  • Requires locally run AI models
  • Self-hosted rather than a hosted subscription service
  • Model licenses determine commercial-use rights for generated images

• ComfyUI8.8/10 · Free plan

  A flexible open-source workflow engine for creators who need deep control.

  Visit ComfyUIFull verdict →
• SwarmUI6.4/10 · Free plan

  A free local interface for combining AI image backends, workflows, and APIs.

  Visit SwarmUIFull verdict →