What Scripting Language Is Used in ServiceNow?


Larry Thompson

ServiceNow is a powerful platform that offers a wide range of features and functionalities to help organizations streamline their IT service management processes. One of the key aspects of ServiceNow is its scripting capabilities, which allow users to customize and extend the platform’s functionality according to their specific business needs. In this article, we will explore the scripting language used in ServiceNow and how it can be leveraged to enhance the platform’s capabilities.

JavaScript in ServiceNow:

ServiceNow uses JavaScript as its primary scripting language. JavaScript is a widely-used programming language that is primarily used for client-side web development. However, in ServiceNow, JavaScript can be used on both the client-side and server-side to create custom applications, automate processes, and enhance existing functionalities.

Client-Side Scripting:

In ServiceNow, client-side scripting refers to scripts that run on the user’s browser when they interact with a ServiceNow application. These scripts can be used to perform various actions such as validating user inputs, dynamically updating form fields, or implementing custom behavior.

  • Business Rules: Business rules are client-side scripts that run when specific conditions are met. They can be used to enforce data integrity rules or automate certain tasks based on user actions.
  • Client Scripts: Client scripts are scripts that run on specific forms or fields. They can be used to perform field-level validations, show/hide fields dynamically, or populate values based on user selections.

Server-Side Scripting:

In addition to client-side scripting, JavaScript can also be used for server-side scripting in ServiceNow. Server-side scripts run on the server instead of the user’s browser and are used to perform more complex operations or interact with external systems.

  • Business Rules: While business rules can also be used for server-side scripting, they are primarily used for client-side scripting. Server-side business rules can be used to enforce data integrity rules or automate tasks that need to be executed on the server.
  • Script Includes: Script includes are reusable JavaScript code snippets that can be called from various scripts.

    They allow developers to encapsulate common functionalities and promote code reusability.

  • Scheduled Jobs: Scheduled jobs are server-side scripts that run on a predefined schedule. They are typically used for background tasks such as data imports, data exports, or system maintenance tasks.

Glide API:

In addition to JavaScript, ServiceNow provides its own set of APIs called the Glide API. The Glide API is a collection of server-side JavaScript classes and methods that provide access to various ServiceNow functionalities and data.

The Glide API allows developers to interact with ServiceNow records, perform database operations, send notifications, generate reports, and much more. It provides a powerful set of tools that enable developers to create custom applications and automate complex processes within the ServiceNow platform.


JavaScript is the primary scripting language used in ServiceNow for both client-side and server-side scripting. It offers a wide range of capabilities that allow users to customize and extend the platform’s functionalities according to their specific requirements.

By leveraging JavaScript in ServiceNow, organizations can create custom applications, automate processes, enforce data integrity rules, integrate with external systems, and much more. The powerful combination of JavaScript and the Glide API provides developers with the tools they need to unlock the full potential of the ServiceNow platform.

So, whether you are a developer looking to enhance ServiceNow’s capabilities or an organization looking to streamline your IT service management processes, JavaScript in ServiceNow is the scripting language you need to know!

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