ComfyUI-Utilitools

A collection of utility nodes for ComfyUI that I find handy. Nothing fancy, just stuff that makes workflows a bit easier when you need simple operations.

What's in here?

These aren't the most sophisticated nodes out there, but they get the job done for basic operations:

🧮 Math Nodes

• Add, Subtract, Multiply, Divide - Basic math with both int and float outputs
• Calculator - Safely evaluate simple math expressions like "2 + 2 * 3"

📝 Text Utilities

• Text Concatenation - Join two strings with optional separator
• String Replace - Find and replace text with optional count limit

🔄 Type Conversions

• Float to Int / Int to Float - Convert between number types
• Whatever To String - Convert any value (int, float, string) to string

🤔 Logic & Control

• If Then Else - Branch workflows based on boolean conditions
• Switch - Select from up to 8 inputs by index
• Boolean Gates - AND, OR, NOT operations

📋 Data Manipulation

• Create List - Make lists from up to 8 items
• List Index - Get item from list by index
• Batch Controller - Adjust tensor batch sizes

⚙️ Workflow Helpers

• Passthrough - For workflow organization (does nothing, just passes data through)
• Counter - Increment/decrement with optional reset
• Date Timestamp - Generate formatted date/time strings with toggles for components
• Constants - Int, Float, and String constant value nodes

🖼️ Image Utilities

• Image Dimensions - Get width, height, and batch size from images
• Aspect Ratio - Calculate ratio as decimal and simplified fraction (like "16:9")

Installation

Just drop this folder into your ComfyUI custom_nodes directory and restart ComfyUI. That's it.

ComfyUI/custom_nodes/ComfyUI-Utilitools/

Notes

• All nodes are organized under "Utilitools" categories in the node browser
• Most math operations work with both int and float inputs
• The calculator node only accepts basic math expressions for safety
• These are utility nodes I made for myself - they're useful but not groundbreaking

Structure

The code is organized by category for easier maintenance:

nodes/
├── math.py          # Arithmetic operations
├── text.py          # Text processing
├── conversion.py    # Type conversions  
├── logic.py         # Conditional logic
├── data.py          # Lists and batching
├── workflow.py      # Workflow helpers
├── constants.py     # Constant values
├── image.py         # Image utilities
└── main.py          # Central registry

Feel free to use, modify, or ignore as needed!