NickSpringsteen/fal-krea2-lora-comfyui-converter

fal.ai Krea 2 LoRA to ComfyUI converter

Converts fal.ai Krea 2 LoRA .safetensors key names into a format ComfyUI's Krea2 loader can read.

This does not change the weights. It only renames the safetensors keys, for example from:

base_model.model.blocks.0.attn.wq.lora_A.weight

to:

transformer_blocks.0.attn.to_q.lora_down.weight

Files

• convert_lora_dragdrop.py - the actual converter, works on macOS, Windows, and Linux with Python 3.
• convert_lora_dragdrop.command - macOS helper. Double-click it or drag a .safetensors file onto it.
• convert_lora_dragdrop.bat - Windows helper. Drag a .safetensors file onto it.

No torch or safetensors Python package is required.

Sharing

The easiest way to share this is a public GitHub Gist with these files:

• README.md
• convert_lora_dragdrop.py
• convert_lora_dragdrop.command
• convert_lora_dragdrop.bat

Usage

macOS

1. Put convert_lora_dragdrop.py and convert_lora_dragdrop.command in the same folder.
2. If needed, make the helper executable:

chmod +x convert_lora_dragdrop.command

3. Double-click convert_lora_dragdrop.command and choose your fal.ai Krea 2 LoRA, or drag the LoRA file onto the .command file.
4. Copy the generated *_comfy_krea2.safetensors file to ComfyUI/models/loras.

Windows

1. Put convert_lora_dragdrop.py and convert_lora_dragdrop.bat in the same folder.
2. Drag your fal.ai Krea 2 LoRA .safetensors file onto convert_lora_dragdrop.bat.
3. Copy the generated *_comfy_krea2.safetensors file to ComfyUI\models\loras.

Terminal

python3 convert_lora_dragdrop.py /path/to/your_lora.safetensors

On Windows, use:

py -3 convert_lora_dragdrop.py C:\path\to\your_lora.safetensors

Notes

• This is for fal.ai Krea 2 LoRAs with keys like base_model.model.*.lora_A.weight and base_model.model.*.lora_B.weight.
• Update ComfyUI first. Older ComfyUI builds may not include Krea2 LoRA key mapping.
• Load the converted LoRA with the Krea2 base model in ComfyUI.