ComfyUI_html

ComfyUI HTML Preview Node

A ComfyUI custom node that allows you to preview and manipulate HTML content directly in your workflow.

Installation

1. Clone this repository into your ComfyUI/custom_nodes directory
2. Restart ComfyUI

Nodes

HTML Preview

A node that allows you to preview HTML content with configurable viewport settings:

• width: Width of the preview viewport (default: 375px)
• height: Height of the preview viewport (default: 667px)
• scale: Scale factor for the preview (default: 1.0)
• is_portrait: Toggle between portrait/landscape orientation
• html: HTML content to preview (string input)

HTML Download

A node that allows you to download HTML content as a file:

• filename: Name of the file to download (default: "myhtml.html")
• html: HTML content to download (string input)

Single Image to Base64

A utility node that converts an image into a base64 string representation:

• image: Input image to convert
• Returns: Base64 encoded string of the image

Save HTML

A node that saves HTML content to your ComfyUI output directory:

• html: HTML content to save (string input)
• filename_prefix: Prefix for the output filename (default: "ComfyUI")

The filename prefix supports formatting patterns:

• Date/time: %date:yyyy-MM-dd%, %date:hh-mm-ss% etc.

The HTML file will be saved with an auto-incrementing counter in your ComfyUI output folder.

Workflows

HTML Preview