> For the complete documentation index, see [llms.txt](https://dev.ubidots.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.ubidots.com/dashboards-and-widgets/html-canvas.md).

# HTML Canvas

Build your own custom widgets with the HTML Canvas

### Introduction:

Ubidots offers off-the-shelf widgets for most visualization needs. However, some projects require more specific or fully custom widgets. For those cases, use the HTML Canvas widget to build custom visualizations with your own code.

### Definition:

HTML Canvas is a widget for building custom widgets. It lets you write custom code with the following languages, along with Ubidots built-in methods and third-party libraries described later:

* HTML
* CSS
* JavaScript

This widget features a code editor composed of three tabs, one for each language.

### When to use the HTML Canvas?

Use HTML Canvas when other widgets do not meet your functionality or styling requirements.

### How to create an HTML Canvas?

Go to a dashboard, click the *Add new widget* button (+), scroll to the *Advanced* section, and select *HTML Canvas*.

<figure><img src="https://884329393-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MhzNRg0B4ECiNXc093G%2Fuploads%2FFbgDbzmphSKNGbg8OaYF%2Fimage.png?alt=media&amp;token=6f355a93-83e4-49c7-b1e9-a7474e4a762d" alt="" width="375"><figcaption></figcaption></figure>

### Widget settings:

The widget offers the following settings:

* Code editor
* Third-party libraries
* Enable lazy loading
* Preload dashboard data

### Widget appearance tab:

The appearance of the widget can be customized further with these options:

* Name
* Custom Style

### Custom Style:

See [**Custom Style**](/dashboards-and-widgets/custom-ui.md) to learn how to customize your HTML Canvas styles.


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