---
title: "Add Column"
description: "Local-first visual environment for building and running AI workflows. Build agents visually, deploy anywhere, privacy by design."
canonical: https://docs.nodetool.ai/nodes/nodetool/data/addcolumn
markdown: https://docs.nodetool.ai/nodes/nodetool/data/addcolumn.md
product: NodeTool
source: https://github.com/nodetool-ai/nodetool/blob/main/docs/nodes/nodetool/data/addcolumn.md
---

# Add Column

**Type:** `nodetool.data.AddColumn`

**Namespace:** `nodetool.data`

## Description

Add list of values as new column to dataframe.
    dataframe, column, list

    Use cases:
    - Incorporate external data into existing dataframe
    - Add calculated results as new column
    - Augment dataframe with additional features

## Properties

| Property | Type | Description | Default |
|----------|------|-------------|---------|
| dataframe | `dataframe` | Dataframe object to add a new column to. | `{"type":"dataframe","uri":"","asset_id":null,"d...` |
| column_name | `str` | The name of the new column to be added to the dataframe. | `` |
| values | `list[any]` | A list of any type of elements which will be the new column's values. | `[]` |

## Outputs

| Output | Type | Description |
|--------|------|-------------|
| output | `dataframe` |  |

## Related Nodes

Browse other nodes in the [nodetool.data](./) namespace.