--- title: Reference - Default Page Builder widgets --- > Agent instructions: > **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown. > > - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version. > - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt). The following page lists all [widgets](https://docs.kentico.com/documentation/developers-and-admins/development/builders/page-builder/widgets-for-page-builder.md) available for the [Page Builder](https://docs.kentico.com/documentation/developers-and-admins/development/builders/page-builder.md) out-of-the-box. You may not see all of the default system widgets for some pages, depending on the [editable area limitations](https://docs.kentico.com/documentation/developers-and-admins/development/builders/page-builder/create-pages-with-editable-areas.md) in your project. > **Tip:** **Component identifiers** > > The identifiers of system components are available in the `SystemComponentIdentifiers` class (in the `Kentico.Content.Web.Mvc` namespace). For example, use `SystemComponentIdentifiers.RICH_TEXT_WIDGET_IDENTIFIER` for the identifier of the _Rich text_ widget. > > These identifiers are required when decorating existing widgets with custom functionality. See [Extend widgets](https://docs.kentico.com/documentation/developers-and-admins/development/builders/page-builder/widgets-for-page-builder/extend-widgets.md). | Widget name | Properties | Description | | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Form | **FormWidgetProperties**
**SelectedForm** – an `IEnumerable` collection containing the code name of the selected form.
**AfterSubmitMode** – the action performed after a user submits the form. Set one of the options available in `FormAfterSubmitModeConstants`.
**AfterSubmitDisplayText**
**AfterSubmitRedirectToUrl**
**AfterSubmitRedirectToWebPage** | Allows users to [display a form](https://docs.kentico.com/documentation/business-users/digital-marketing/forms/display-forms-on-pages.md) on the website. | | Rich text | **RichTextWidgetProperties**
**Content** – a string property that contains the formatted rich text. | Allows users to input [rich text content](https://docs.kentico.com/documentation/business-users/rich-text-editor.md) via a toolbar with standard word processor features. You can change the default set of toolbar options available to content editors via custom toolbar configurations. |