> ## Documentation Index > Fetch the complete documentation index at: https://docs.vectorshift.ai/llms.txt > Use this file to discover all available pages before exploring further. # Flatten List of Lists Node > Flatten a list of lists into a single list Flatten List of Lists This node allows you to flatten a list of lists. Specifically, it takes a list of lists and converts it into a list. For example, flattening \[\[a, b], \[c, d]] becomes \[a, b, c, d]. ## Node Inputs 1. Type: The type of list you want to create * Type: `Dropdown` 2. List of lists: The list of lists you want to flatten * Type: `List>` (based on the type of list you choose) ## Node Outputs 1. Flattened list: The flattened list * Type: `List` * Example usage: `{{flatten_list_0.flattened_list}}` ## Example The below example is a pipeline for flattening a list of lists to a list. Flatten List of Lists Example