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ComfyUI Extension: ComfyUI-Nikosis-Nodes

Authored by Nikosis

Created

Updated

1 stars

Nodes: Aspect Ratio, Prompt Multiple Styles Selector, Text Concatenate

Custom Nodes (5)

README

ComfyUI-Nikosis-Nodes

A collection of custom nodes for ComfyUI designed to enhance your workflow with utilities for aspect ratio generation, multi-style prompt selection, and text concatenation.

Installation

Recommended

Manual

  • Navigate to ComfyUI/custom_nodes in your terminal (cmd).
  • Clone the repository under the custom_nodes directory using the following command: 
    git clone https://github.com/Nikosis/ComfyUI-Nikosis-Nodes comfyui-nikosis-nodes
cd comfyui-nikosis-nodes
  • Install dependencies in your Python environment.
    • For Windows Portable, run the following command inside ComfyUI\custom_nodes\comfyui-nikosis-nodes: 
      ..\..\..\python_embeded\python.exe -m pip install -r requirements.txt
    • If using venv or conda, activate your Python environment first, then run: 
      pip install -r requirements.txt
  • Restart ComfyUI

Nodes Overview

🖌️ Aspect Ratio (nikosis)

File: nodes/aspect_ratio_nikosis.py
Category: Nikosis/Utilities

Description

Generates an empty latent tensor for SDXL (4 channels) or SD3/Flux (16 channels) with customizable aspect ratios and dimensions.

Inputs

  • model_type: Choose between SDXL (4 channels) or SD3/Flux (16 channels).
  • aspect_ratio: Select from presets (e.g., 1:1 square 1024x1024, 16:9 landscape 1344x768) or custom.
  • width/height: Custom dimensions (64–16384, step 8) when using custom.
  • swap_dimensions: Toggle to flip width and height (Off/On).
  • batch_size: Number of latents to generate (1–64).

Outputs

  • empty_latent: A LATENT tensor (batch_size x channels x height//8 x width//8).
  • width/height: Final dimensions as integers.

Features

  • Automatically rounds dimensions to multiples of 8.
  • Supports preset aspect ratios or custom sizes with dimension swapping.

Example Usage

Select SDXL, 4:3 landscape 1152x896, and batch_size=2 to generate two empty latents at 1152x896 for SDXL workflows.

🖌️ Prompt Multiple Style Selector (nikosis)

File: nodes/prompt_multiple_styles_selector_nikosis.py
Category: Nikosis/Text

Description

Combines up to four styles from a styles.json file into positive and negative prompts, with dropdown selection.

Inputs

  • style1/style2/style3/style4: Choose styles from styles.json (defaults to No Style).

Outputs

  • positive_prompt: Comma-separated positive prompts from selected styles.
  • negative_prompt: Comma-separated negative prompts from selected styles.

Configuration

  • Requires a styles.json file in config/ (e.g., comfyui-nikosis-nodes/config/styles.json).

Example styles.json

{
  "Vivid": {"prompt": "bright colors, high detail", "negative_prompt": "dull, blurry"},
  "Minimal": {"prompt": "simple, clean", "negative_prompt": "cluttered"},
  
}

{
      "||| PHOTOGRAPHY": {
        "prompt": "photography, capturing moments, storytelling, creative composition",
        "negative_prompt": "bad anatomy, comics, cropped, cross-eyed, worst quality, low quality, painting, 3D render, drawing,"
      },
}
  • Creates config/ directory if missing.

Example Usage

Select Vivid and Minimal to get:

  • Positive: bright colors, high detail, simple, clean
  • Negative: dull, blurry, cluttered

🖌️ Text Concatenate (nikosis)

File: nodes/text_concatenate_nikosis.py
Category: Nikosis/Text

Description

Concatenates multiple text inputs with a customizable delimiter and optional whitespace cleaning.

Inputs

  • text_a/text_b: Required text inputs (must be connected).
  • delimiter: String to join texts (default: ", "; supports \n for newlines).
  • clean_whitespace: Toggle to strip extra whitespace (true/false).
  • text_c/text_d: Optional additional texts.

Outputs

  • STRING: Concatenated result.

Features

  • Strips whitespace if clean_whitespace is true.
  • Ignores empty inputs.

Example Usage

Inputs:

  • text_a="hello"
  • text_b="world"
  • delimiter=" , "
  • clean_whitespace="true"

Output:
hello , world

Usage Notes

  • Dependencies: Works with ComfyUI’s standard setup—no extra installs needed.
  • Path: Place in ComfyUI/custom_nodes/comfyui-nikosis-nodes/.
  • Testing: Ensure your styles.json is correctly formatted for the style selector node.

Contributing

  • Feel free to submit pull requests or issues on GitHub.
  • Suggestions for new nodes or improvements are welcome!

License

MIT License (see LICENSE file).