# Custom widgets

**Custom widgets** enable application builders to securely extend Foundry applications with custom frontend code. Currently, custom widgets are only supported in Workshop.

![The custom widgets application displaying an example widget.](../../../assets/c8d585489003a6f7bc1737fa25e64074e0451bc3273dc795d7503e960ce6a0bc.webp)

With custom widgets, technical builders can implement functionality that is not available out of the box. They can provide a tailored experience without creating a standalone custom application.

Examples of custom widgets include:

* A custom chart visualization such as a candlestick chart
* An industry-specific view of an ontology object such as a flight plan
* A signature entry widget

For common custom widget issues, see [Troubleshooting](../troubleshooting/index.md).