ComfyUI Impact Pack
Detection, segmentation, and detailers — the canonical face/hand fix pack.
Open Sourcevia comfyui
Actually FreeNo SignupOpen SourceWatermark-Free
Inspire Pack
Regional prompting, segs, and the Lora-Block-Weight system.
Open Sourcevia comfyuiRuns locally
Actually FreeNo SignupOpen SourceWatermark-FreeHobbyist-FriendlyPlugin
Requires: ComfyUI
Visit Inspire PackUpdated 2026-04-30 · Direct link
Hardware requirements
Runs locally · No GPU
Min VRAM
None
Rec. VRAM
None
Min RAM
8 GB
Rec. RAM
16 GB
Disk
10 GB
GPU class
No GPU
No Apple SiliconGPU Required
Plug-in for ComfyUI — inherits host requirements.
Screenshot placeholder · Inspire Pack
What is Inspire Pack?
Built by the Impact Pack author (Dr.Lt.Data) as a sister project. Inspire adds the Regional Prompter port (assign different prompts to different image regions), advanced LoRA Block Weight controls, and the SEGS pipeline used by many auto-detailing workflows.
Pros & cons
Pros
- Regional prompting that actually works on SDXL
- LoRA Block Weight = fine control over which LoRA layers fire
- Tight integration with Impact Pack workflows
Cons
- Many nodes are 'companion' to Impact Pack — install both
- Documentation is thin; assumes Comfy fluency
What's actually free?
GPL.
✓ Actually FreeNo SignupOpen SourceWatermark-Free
Alternatives
ComfyUI ControlNet Auxiliary
All the ControlNet preprocessors in one node pack.
Open Source 6–12 GB VRAM
- Min VRAM
- 6 GB
- GPU class
- Mid GPU
- Quant
- FP16
Actually FreeNo SignupOpen SourceWatermark-Free