---
sourceDocument: Brazil Build or modify applications
sourceDocumentLink: https://www.servicenow.com/docs/r/application-development

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Build or modify applications

ft:clusterId :

    - cadev

bundleId :

    - cadev

workflow :

    - Development, Data, and Analytics


---

# Lux Development

# Lux Development {#ariaid-title1}

Release version: Brazil  
Updated October 1, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Lux is a framework for building modern widget-based UI experiences that run on a ServiceNow instance. Create pages, widgets and reusable components, configure experience behavior, and safely extend applications using Lux development tools and frameworks.

## Get started {#lux-development-landing__cf-app-landing-get-started}

|-|-|-|
| [ExploreLearn about Lux concepts and features.](https://www.servicenow.com/docs/W~ZWevqhzCZcHWC4UOkVuA "Lux is a framework for building widget-based UI experiences on a ServiceNow instance.") | [ConfigureConfigure experiences with Lux](https://www.servicenow.com/docs/CxSmzCuHdaE8Cz~gjIdONw "Configure experiences by setting the properties that drive each instance and using the inline and admin editing surfaces to manage those values. You can arrange widgets into layout regions and apply themes to control appearance without touching code.") | [ExtendExtend experiences with Lux](https://www.servicenow.com/docs/EutoAjzaI13ufwmFcDilLQ "Use extensions to add pages, navigation, and layouts to an experience that another scoped application owns, without forking the host application or changing its code.") |
| [BuildBuild with Lux](https://www.servicenow.com/docs/TRwb5JsJF4VcJzmIcxT5mg "You build a Lux app in code, starting from its pages. A page is a Lit web component that Lux registers as a route based on where you put its file.") | [Test and DeployTest and deploy Lux experiences](https://www.servicenow.com/docs/7wKOlXhpfozdwk85OgOpyQ "A Lux app moves from your local machine to a ServiceNow instance through preview, testing, debugging, validation, and deployment.") | [ReferenceLux reference material](https://www.servicenow.com/docs/BHW1m5C8WwHp3jXfkvhhAQ "The Lux reference topics provide the exact names, keys, options, and values that the other chapters explain, from the now-sdk command-line interface to the design tokens.") |
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## Key benefits of Lux {#lux-development-landing__cf-app-landing-overview}

* Admin configuration changes survive platform upgrades
* Extend or override another app's experience without forking it or coordinating release schedules
* Users see content instantly with no spinners, and search engines can index the fully rendered markup
* Lux applies design system styling and theming automatically, letting admins override tokens per tenant without a rebuild
* Build components and widgets once and reuse across pages, apps, AI placement, and chat surfaces
* One consistent build-deploy pipeline and architecture across the CLI, Lux Lab, and Maven, regardless of app size
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