ToolJet/docs/versioned_docs/version-2.27.0/tooljet-concepts/what-are-components.md
Karan Rathod 7d4cd6da47
[docs]:app builder 1.5 updates (#8672)
* add getter function and table transformation docs

* add dropdown, number-input, password-input and text-input docs

* [docs] custom parameters for queries

* update docs for revamped components, runJS and runPy functions and sidebar

* change order of properties and other misc changes

* update query panel and other minor fixes

* added version 2.29.0

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Co-authored-by: Shubhendra <withshubh@gmail.com>
2024-02-15 11:51:55 +05:30

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---
id: what-are-components
title: What Are Components?
---
Components in ToolJet serve as the building blocks for creating applications. They are pre-designed elements that you can drag and drop onto the canvas in the App-Builder. ToolJet comes with 45+ built-in components.
<div style={{textAlign: 'center'}}>
<img style={{padding: '10px', marginBottom:'15px'}} className="screenshot-full" src="/img/tooljet-concepts/what-are-components/drag-drop-components.gif" alt="Drag And Drop Components" />
</div>
These components range from basic UI elements like buttons, text fields, and tables, to more complex elements like kanban, charts, and maps. By using components, you can quickly assemble a functional and visually appealing application without having to write code from scratch.
### Customizing Components
Components are highly customizable and interactive. Once you place a component on the canvas, you can easily modify its properties, styles, and behaviors through the properties panel on the right side of the App-Builder. This allows you to make your application dynamic and responsive.
<div style={{textAlign: 'center'}}>
<img style={{padding: '10px', marginBottom:'15px'}} className="screenshot-full" src="/img/tooljet-concepts/what-are-components/component-config.gif" alt="Component Configuration" />
</div>
### Using Components With Data
In ToolJet, components can be easily connected to various data sources like databases, APIs, and third-party services through **[queries](what-are-queries)**. Once the data is fetched, you can bind it to components like tables, charts, and more.
<div style={{textAlign: 'center'}}>
<img style={{padding: '10px', marginBottom:'15px'}} className="screenshot-full" src="/img/tooljet-concepts/what-are-components/adding-data-to-component.png" alt="Adding Data To Component" />
</div>
## Custom Components
ToolJet allows for the creation of custom components using React. This feature is invaluable for developers who require functionalities beyond the 45+ built-in components that ToolJet offers. To create a custom component, you can drag and drop a **[Custom Component](/docs/widgets/custom-component/)** on the canvas and configure its data and code.
<div style={{textAlign: 'center'}}>
<img style={{padding: '10px', marginBottom:'15px'}} className="screenshot-full" src="/img/tooljet-concepts/what-are-components/custom-components.png" alt="Custom Components" />
</div>
By incorporating custom React components, you can significantly extend the capabilities of your ToolJet applications, allowing for a more tailored and unique user experience.
To explore the full list of components in ToolJet, go through the **[Component Library](/docs/widgets/bounded-box)**.