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rocm-automated/OPEN_WEBUI_COMFYUI_SETUP.md
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Open WebUI ComfyUI Integration Setup Guide

This guide will help you configure Open WebUI to work with ComfyUI for AI image generation.

Prerequisites

  • Open WebUI running and accessible
  • ComfyUI running on your local network (typically at http://172.28.0.5:8188)
  • Admin access to Open WebUI

Configuration Steps

1. Navigate to Admin Settings

  1. Open your Open WebUI interface in a web browser
  2. Click on the Admin section in the navigation menu
  3. Go to Settings
  4. Select Images from the settings menu

2. Configure Image Generation Engine

In the Images settings page, configure the following:

Image Generation Engine

  • Select: ComfyUI

ComfyUI Base URL

http://172.28.0.5:8188

3. ComfyUI Workflow Configuration

Workflow Setup

  1. In ComfyUI, create your desired workflow

  2. Export the workflow as API format:

    • In ComfyUI interface, go to the workflow menu
    • Choose "Export"
    • Select "API Format"
    • Save as workflow.json

  3. Upload the workflow:

    • In Open WebUI Images settings, click "Upload" under ComfyUI Workflow
    • Select your exported workflow.json file

Required Workflow Nodes

Configure the following node mappings in the ComfyUI Workflow Nodes section:

Parameter Node Type Node ID Description
prompt* text 6 Text prompt input (required)
model unet_name 37 Model selection
width width 58 Image width
height height 58 Image height
steps steps 3 Sampling steps
seed seed 3 Random seed

Note

: Prompt node ID(s) marked with * are required for image generation to work.

Important Notes

  1. Network Configuration: Ensure that Open WebUI can reach ComfyUI at the specified IP address (172.28.0.5:8188)

  2. API Format Export: Always export your ComfyUI workflow in API format, not the regular format

  3. Node IDs: The node IDs (like 6, 37, 58, 3) must match the actual node IDs in your ComfyUI workflow

  4. Required Nodes: The prompt node is mandatory - image generation will fail without it

Troubleshooting

Common Issues

  1. Connection Failed:

    • Verify ComfyUI is running on 172.28.0.5:8188
    • Check network connectivity between Open WebUI and ComfyUI

  2. Workflow Errors:

    • Ensure workflow was exported in API format
    • Verify all required nodes are present in the workflow
    • Check that node IDs match your actual workflow

  3. Missing Images:

    • Confirm the prompt node ID is correctly configured
    • Ensure ComfyUI has the required models installed

Verification Steps

  1. Test the ComfyUI connection by visiting http://172.28.0.5:8188 in your browser
  2. Generate a test image through Open WebUI to verify the integration
  3. Check ComfyUI logs for any error messages if generation fails

Additional Configuration

  • Edit Image: Additional image editing capabilities can be configured through the same interface
  • Custom Workflows: You can upload different workflows for various image generation tasks
  • Model Management: Ensure required models are available in your ComfyUI installation

For more advanced configuration options, refer to the Open WebUI and ComfyUI documentation.