Save String KJ (SaveStringKJ) - ComfyUI-KJNodes

The Save String KJ node, in terms of technical implementation, allows users to customize the output file's name prefix, save folder, and file extension.

The Save String KJ node is a utility node designed to save text strings as local files. Its core function is to receive a text input and write its content to a .txt file in a specified directory, facilitating the persistent storage of text information generated within a workflow.

Node Functionality

Technically, this node allows users to customize the output file's name prefix, save folder, and file extension. The filename prefix supports dynamic formatting, such as embedding the current date or referencing attribute values from other nodes, providing high flexibility for file naming. The node ultimately writes the processed text content to ComfyUI's output directory or a specified subfolder within it.

Node Parameter Description - Save String KJ

Parameters

Parameter Name	Data Type	Required	Default Value	Range/Options	Description
`string`	STRING	Yes	-	-	string to save as .txt file
`filename_prefix`	STRING	Yes	text	-	The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes.
`output_folder`	STRING	Yes	output	-	The folder to save the images to.
`file_extension`	STRING	No	.txt	-	The extension for the caption file.

Output

Parameter Name	Data Type	Description
filename	STRING	Defines the prefix part of the output filename, supporting the use of formatting strings like `%date:yyyy-MM-dd%` to embed dynamic information.

Use Cases

In practical applications, this node is highly suitable for workflows that require recording or exporting text information. For example, in a workflow combining text generation and image generation, users can save prompts generated by a large language model node using this node. This facilitates subsequent analysis or use as input for other image generation tasks, enabling workflow archiving and reuse.

Notes

When using this node, note that its output path depends on ComfyUI's configuration. If the specified output_folder is not an absolute path, it will default to being saved under ComfyUI's output directory. Ensure you have write permissions for the output directory to avoid save failures.

Save String KJ Node Source Code Link

The Save String KJ node is from the ComfyUI-KJNodes node package.

Save String KJ(SaveStringKJ)

Save String KJ