> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# ComfyNotNode - ComfyUI Built-in Node Documentation

> Complete documentation for the ComfyNotNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/ComfyNotNode/en.md)

## Overview

The Not node performs a logical NOT operation on any input value. It returns True if the input value is considered falsy (like 0, empty string, None, False), and returns False if the input value is truthy. It uses Python's standard rules for determining truthiness.

## Inputs

| Parameter | Data Type | Required | Range     | Description                                                                                              |
| --------- | --------- | -------- | --------- | -------------------------------------------------------------------------------------------------------- |
| `value`   | ANY       | Yes      | Any value | The input value to be inverted. Any data type is accepted and evaluated using Python's truthiness rules. |

## Outputs

| Output Name | Data Type | Description                                                                                               |
| ----------- | --------- | --------------------------------------------------------------------------------------------------------- |
| `output`    | BOOLEAN   | The logical inverse of the input value. Returns True if the input is falsy, False if the input is truthy. |

***

**Source fingerprint (SHA-256):** `fd8f940218538fce28079bc836379703c0e3c04f80351520497855c464176877`