MultiString Prompt Nodes for ComfyUI

This is a simple but powerful set of custom nodes for ComfyUI, designed to help you manage and sequence multiple prompts from a single, clean interface.

This pack contains two nodes:

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1. MultiString Prompts: A utility node for managing and batching multiple string prompts. Ideal for feeding into loops or other nodes that process text. <img width="324" height="431" alt="image" src="https://github.com/user-attachments/assets/e6ba4cc5-8652-48ab-8728-d73fd84dccaa" />

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2. MultiString Prompts Encode: An all-in-one encoder that takes your prompts and a CLIP model and directly outputs conditioning blocks, ready for a KSampler. <img width="328" height="475" alt="image" src="https://github.com/user-attachments/assets/2b32935b-6a65-441f-a6c3-84145a9791a5" />

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How to Install

1. Navigate to your ComfyUI installation directory.
2. Go into the ComfyUI/custom_nodes/ folder.
3. Create a new folder inside custom_nodes (e.g., MultiStringNodes).
4. Place all three files (multi_prompt_node.py, multi_prompt_encode_node.py, and __init__.py) inside that new folder.
5. Restart your ComfyUI server.

The nodes will be available by right-clicking the canvas and selecting Add Node > MultiString Prompts.

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1. MultiString Prompts

This is the original string-management node. It's perfect for workflows like sequential video generation where you need to feed a series of different text prompts into your model.

What It Does

• 5 Prompt Slots: Provides five large, multiline text boxes for your main prompts.
• Prefix & Suffix: Includes two compact, single-line text boxes to add a prefix (like style or quality keywords) and a suffix to all of your prompts.
• Enable/Disable Toggles: You can instantly turn the prefix or suffix on or off using "true/false" dropdowns, allowing you to test prompts without deleting your keywords.
• Smart Empty Handling: If you leave a prompt box empty, the node outputs a completely empty string (it won't just output prefix,suffix).
• List Output: In addition to 5 individual string outputs, it provides a single prompt_list output. This is perfect for feeding all 5 prompts into a "Loop" or "Batch" node for a more compact workflow.

Inputs & Outputs

• Inputs
  • enable_prefix (toggle): Set to true to use the prefix, false to ignore it.
  • enable_suffix (toggle): Set to true to use the suffix, false to ignore it.
  • prefix (string): A single-line string added to the beginning of each prompt.
  • suffix (string): A single-line string added to the end of each prompt.
  • multi_prompt_1 - multi_prompt_5 (string): Five multiline text boxes for your individual prompts.
• Outputs
  • prompt_1 - prompt_5 (string): The final, processed string for each corresponding prompt (e.g., prefix,multi_prompt_1,suffix).
  • prompt_list (LIST): A single ComfyUI list that contains all 5 processed strings.

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2. MultiString Prompts Encode

This is a powerful encoder node that handles both prompt processing and CLIP encoding in one step. It allows you to manage 5 separate positive prompts and one shared negative prompt.

What It Does

• Direct-to-Conditioning: Takes your CLIP model as a direct input.
• 5 Positive, 1 Negative: Provides five multiline text boxes for positive prompts and one multiline text box for a negative prompt.
• Prefix & Suffix: Uses the same powerful prefix/suffix system with toggles, which will be applied to all 6 prompt boxes.
• Individual Outputs: Outputs 6 separate CONDITIONING blocks (5 positive, 1 negative).
• Workflow Power: This is ideal for advanced workflows like regional prompting (where you need separate conditioning for different areas) or for creating prompt sequences where each positive prompt is encoded individually against a single, shared negative prompt.

Inputs & Outputs

• Inputs
  • clip (CLIP): The CLIP model to use for encoding.
  • enable_prefix (toggle): Set to true to use the prefix.
  • enable_suffix (toggle): Set to true to use the suffix.
  • prefix (string): A string added to the beginning of all 6 prompts.
  • suffix (string): A string added to the end of all 6 prompts.
  • positive_prompt_1 - positive_prompt_5 (string): Five multiline text boxes for your positive prompts.
  • negative_prompt (string): A single multiline text box for your negative prompt.
• Outputs
  • positive_1 - positive_5 (CONDITIONING): Five separate positive conditioning blocks, one for each input prompt.
  • negative (CONDITIONING): A single negative conditioning block.