PromptConcat(promptConcat)

PromptConcat concatenates two prompt strings with a configurable separator. It is a lightweight string utility for building prompts from reusable segments, such as combining a main subject with style, quality, or detail tags. The node performs no trimming, escaping, or formatting; the strings are passed through exactly as provided.

Description

This node is part of the ComfyUI-Easy-Use package and belongs to the EasyUse/Prompt category. It takes two prompt strings and joins them with a separator, producing a single combined string output.

Inputs

• prompt1 (STRING, optional, default: ""): The first prompt segment to concatenate.
• prompt2 (STRING, optional, default: ""): The second prompt segment to concatenate.
• separator (STRING, optional, default: ""): The text placed between prompt1 and prompt2. Use a space, comma, line break, or any other delimiter as needed. Leave empty to concatenate the two prompts directly with no separator.

Outputs

• STRING: The concatenated prompt result.

Usage Notes

• All inputs are optional and default to an empty string, so the node can be used with only one side filled in if desired.
• The separator is inserted verbatim between the two prompt strings, so include any surrounding spaces or punctuation in the separator value for readable output.
• This node is useful for composing prompts from reusable parts, such as appending quality tags or style modifiers to a base prompt.
• Because the output is a plain string, it can be passed to other prompt-processing or sampler nodes in a workflow.