ComfyUI
Leading#2 in Open sourcehigh confidence
The node-based industry standard (~122k GitHub★) for pro Stable Diffusion / FLUX pipelines; 12k+ custom nodes and full pipeline control.Our read
Why it ranks #2
About 122k GitHub stars, 12k+ community nodes and strong placement in the cited comparison establish ComfyUI as the professional node-workflow standard.Here is the catch
steep learning curve for node graphs
custom-node dependency conflicts are common
complex workflows are difficult to debug and maintain
Does this well
complete control over every generation stage
efficiently reuses models and intermediate results
fast-moving ecosystem supports new models early
Pricing
Checked by hand on 2026-07-23. Prices in this category change often — if this looks wrong, it probably is.
Key features
Node-based diffusion workflowsReusable workflow JSON and templatesBroad SD, FLUX and video-model supportCustom-node ecosystem
Quick facts
More in this area
The rest of the Open source column.- 1Stable Diffusion WebUI (AUTOMATIC1111)The most-adopted local image-generation tool ever (~164k GitHub★) — the de-facto Stable Diffusion interface with a vast extension ecosystem.
- 3Fooocus (lllyasviel)The simplest local generator (~51k GitHub★) — a Midjourney-like, prompt-only experience on SDXL. Best on-ramp for non-technical users.
- 4Diffusers (Hugging Face)The standard library (~34k GitHub★) for running/embedding diffusion models (SD, SDXL, FLUX) into your own app — the developer default.
- 5InvokeAIClean, professional local studio (~27.7k GitHub★) with a powerful unified canvas — combines SD WebUI and ComfyUI strengths for creative workflows.
- 6Stability-AI generative-models (SDXL / SD3)Stability AI's official model repo (~27.2k GitHub★) — reference SDXL / SD3 weights and code from the maker of Stable Diffusion.
- 7FLUX (Black Forest Labs)Official inference repo for FLUX (~25.8k GitHub★) — the strongest open-weight image model family, go-to for product photography quality.