What is the best free alternative to ComfyUI?
Stable Diffusion (Stability AI) is the closest free alternative to ComfyUI: same AI Image Generation sub-category, and it is free. Open-source, run locally for unlimited free use
Best free ComfyUI alternatives
Looking for a free alternative to ComfyUI? Here are 9 ai image generation worth trying — 9 with a free tier. ComfyUI itself is free.
| Tool | ComfyUI (you searched) | Stable Diffusion (Stability AI) | PicLumen | Hunyuan Image (Tencent) |
|---|---|---|---|---|
| Pricing | free | free | free | free |
| Best for | Node-graph interface for building image, video, audio and 3D generation workflows without code | Open-source, run locally for unlimited free use | Genuinely free image generation | Open-sourced 80B-parameter MoE text-to-image model (weights on Hugging Face) |
| Visit | Open ↗ | Open ↗ | Open ↗ | Open ↗ |
ComfyUI alternatives — straight answers
Are there free ComfyUI alternatives?
Yes — 9 of the 9 alternatives listed here are free or freemium: Stable Diffusion (Stability AI), PicLumen, Hunyuan Image (Tencent), Bing Image Creator, HunyuanImage 3.0 (Tencent). None of them are paid-only.
Is ComfyUI free?
ComfyUI is free. There is no paid plan attached to it in the catalog.
How were these ComfyUI alternatives chosen?
They are the other tools in AI Image Generation, then the rest of Content & Media Generation, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.
All ComfyUI alternatives
Browse AI Image Generation →Stable Diffusion (Stability AI)
AI Image Generation
✦ WhyA ComfyUI alternative — Open-source, run locally for unlimited free use.
- Open-source, run locally for unlimited free use
- Huge ecosystem of models and LoRAs
- ControlNet for precise composition
- Foundation of countless AI art tools
PicLumen
AI Image Generation
✦ WhyA ComfyUI alternative — Genuinely free image generation.
- Genuinely free image generation
- No watermarks on outputs
- Multiple art and realism models
- Simple, fast interface
Hunyuan Image (Tencent)
AI Image Generation
✦ WhyA ComfyUI alternative — Open-sourced 80B-parameter MoE text-to-image model (weights on Hugging Face).
- Open-sourced 80B-parameter MoE text-to-image model (weights on Hugging Face)
- Watermark-free output with long-prompt support and strong world-knowledge grounding
- Released/open-sourced Jan 2026, actively maintained by Tencent
✦ WhyA ComfyUI alternative — Free text-to-image with Microsoft MAI-Image-2.5-Flash and MAI-Image-2e.
- Free text-to-image with Microsoft MAI-Image-2.5-Flash and MAI-Image-2e
- 15 fast creations a day, then unlimited slower generations, up to 200 prompts per 24 hours
- Image upload and edit mode on the 2.5-Flash model
- Requires a personal Microsoft account
✦ WhyA ComfyUI alternative — Open-weights native multimodal image generation model.
- Open-weights native multimodal image generation model
- Strong text rendering and prompt following
- Weights on Hugging Face
- Self-host on multi-GPU or use hosted demos
✦ WhyA ComfyUI alternative — Image model family with strong in-image text rendering; Qwen-Image-2512 and Qwen-Image-2.1 (Sep 2026, 7B, transparent RGBA output).
- Image model family with strong in-image text rendering; Qwen-Image-2512 and Qwen-Image-2.1 (Sep 2026, 7B, transparent RGBA output)
- Qwen-Image-Edit does instruction-based editing; 2509 and 2511 versions add multi-image and consistency
- Free to use in the web app at chat.qwen.ai (Image Generation / Editing) or self-host weights
✦ WhyA ComfyUI alternative — 6B-parameter Apache-2.0 model family: Z-Image, Z-Image-Turbo, editing variant.
- 6B-parameter Apache-2.0 model family: Z-Image, Z-Image-Turbo, editing variant
- Turbo variant reported #1 open-source on Artificial Analysis text-to-image leaderboard
- Runs on 16GB consumer GPUs; free demos on Hugging Face Spaces and ModelScope
✦ WhyA ComfyUI alternative — Midjourney-like prompt-only UI on top of SDXL with built-in prompt expansion.
- Midjourney-like prompt-only UI on top of SDXL with built-in prompt expansion
- Inpaint, outpaint, image prompt and upscale tools
- Free GPL-3.0; runs on 4GB VRAM+
✦ WhyA ComfyUI alternative — Open-source web UI with unified canvas for generation, inpainting and outpainting.
- Open-source web UI with unified canvas for generation, inpainting and outpainting
- Node-based workflows; supports SD, SDXL and FLUX models
- Free community edition, runs locally