ComfyUI Node: lower

Class Name

Basic data handling: StringLower

Category
Basic/STRING
Author
StableLlama (Account age: 861days)
Extension
Basic data handling
Latest Updated
2026-05-07
Github Stars
0.04K

How to Install Basic data handling

Install this extension via the ComfyUI Manager by searching for Basic data handling
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter Basic data handling in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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lower Description

The `StringLower` node converts uppercase characters in a string to lowercase for text standardization.

lower:

The StringLower node is designed to transform all uppercase characters in a given string to their lowercase equivalents. This node is particularly useful when you need to standardize text data to a uniform case, which can be essential for tasks such as text comparison, data normalization, or preparing text for case-insensitive processing. By converting text to lowercase, you ensure consistency and avoid discrepancies that might arise from case differences. This node is straightforward yet powerful, providing a simple way to handle text data efficiently.

lower Input Parameters:

string

The string parameter is the text input that you wish to convert to lowercase. It accepts any string value, and the node will process this input to transform all uppercase letters to lowercase. The default value for this parameter is an empty string (""), which means if no input is provided, the node will return an empty string as well. This parameter is crucial as it determines the content that will be processed by the node.

lower Output Parameters:

string

The output parameter is a string that represents the input text converted to lowercase. This output is significant as it provides a standardized version of the input text, ensuring that all characters are in lowercase. This can be particularly useful for ensuring uniformity in text data, which is often required in various data processing and analysis tasks.

lower Usage Tips:

  • Use the StringLower node when you need to prepare text data for case-insensitive comparisons or searches, ensuring that all text is in a consistent format.
  • This node can be particularly useful in preprocessing steps for machine learning or natural language processing tasks, where uniform text case can improve model performance.

lower Common Errors and Solutions:

Empty String Input

  • Explanation: If the input string is empty, the node will return an empty string as output.
  • Solution: Ensure that the input string is not empty if you expect a meaningful output. Check your data source to confirm that it provides valid text input.

Non-String Input

  • Explanation: If a non-string input is provided, the node may not function as expected since it is designed to handle string data.
  • Solution: Verify that the input provided to the node is a valid string. Convert any non-string data to a string format before passing it to the node.

lower Related Nodes

Go back to the extension to check out more related nodes.
Basic data handling
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lower