Value of migrating from the JavaScript Search Framework (JSUI) to the Quantic library

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Developer

In Salesforce-driven environments, speed, consistency, and platform alignment are key to delivering high-quality digital experiences.

As Salesforce continues to be the core platform for many customer-facing teams, search plays a critical role in how users interact with records, cases, and knowledge content.

Coveo Quantic is a purpose-built component library designed for the Salesforce ecosystem. It enables teams to implement intelligent search interfaces using Lightning Web Components (LWC).

Unlike the JavaScript Search Framework (JSUI), which requires additional integration layers and client-side logic, Quantic offers a native experience that aligns with Salesforce architecture.

With prebuilt components tailored to common use cases, Quantic accelerates delivery while reducing complexity.

Advantages of Coveo Quantic over the Coveo JavaScript Search Framework

When planning a migration, see JSUI component equivalences for a detailed mapping of JSUI features to Quantic components.

In this article, we explore the advantages of Coveo Quantic through four strategic lenses:

Future-proofing

Coveo Quantic is a Lightning Web Components (LWC) library, the standard for modern Salesforce development.

By using native Salesforce technologies, Quantic aligns closely with current and future platform capabilities.

Quantic is deployed as an unlocked package and provides a library of building blocks that developers can use to create custom search experiences, Case Assist interfaces, and Insight Panels. While some development is required, these components are easier to work with than legacy Aura components and integrate cleanly with Salesforce’s overall architecture.

This native alignment with Salesforce standards ensures your search interface can evolve alongside your broader Salesforce environment.

Tip

Quantic gives developers a stable foundation for building Salesforce-native search experiences that scale with the platform.

Technical debt reduction

Coveo Quantic helps reduce technical debt by providing a set of modular, Salesforce-native components that align with Lightning Web Component best practices.

Rather than customizing templates or overriding JavaScript behaviors, developers compose their own components using Quantic's well-defined building blocks. Each Quantic component is designed to handle a specific function, such as:

  • Displaying results

  • Managing facets

  • Executing a query

This modular architecture promotes reuse, testability, and separation of concerns.

Because Quantic adheres to Salesforce development standards, teams avoid issues related to unsupported patterns or non-native frameworks. This leads to cleaner implementations that are easier to maintain and evolve as business needs change.

Tip

With Quantic, teams can build consistent, scalable search experiences without relying on overrides or legacy customization techniques.

Subscription to innovation

Coveo Quantic is maintained in alignment with the Coveo Platform roadmap and is regularly updated to support new features, enhancements, and performance improvements.

Quantic is built using Lightning Web Components, so teams can adopt these updates without rewriting core architecture. Most new capabilities are added to the Quantic package through versioned updates, giving developers access to improvements without disrupting existing implementations.

While implementing new features still requires development effort, Quantic's modular architecture makes it easier to extend and update components as new platform functionality becomes available.

Tip

Quantic evolves alongside the Coveo Platform, giving developers access to new capabilities without needing to re-architect their search interface.

Lower total cost of ownership

Coveo Quantic helps reduce long-term cost by aligning with Salesforce’s native development model and reducing the complexity often associated with integrating external search frameworks.

Because Quantic is built on Lightning Web Components, teams can develop and maintain their search experience using familiar processes. There’s no need to manage separate front-end stacks, custom hosting environments, or workaround-heavy integration patterns.

By working natively within Salesforce, Quantic simplifies compliance with organizational security, access, and deployment standards. As your Salesforce environment evolves, your Quantic implementation evolves with it. This avoids the need for costly rewrites or platform-specific patches.

Tip

Quantic helps organizations reduce long-term support and integration overhead by fitting naturally into existing Salesforce development workflows.

Summary

The following table compares key capabilities and characteristics of the JavaScript Search Framework (JSUI) framework and the Salesforce-native Quantic library, helping you understand the benefits and trade-offs of migrating to a modern, platform-aligned solution.

Capability JSUI Quantic

Architecture

Custom JavaScript framework with coupled logic and rendering

Salesforce-native Lightning Web Components (LWC)

Framework compatibility

Designed for vanilla JavaScript with integration limitations

Built specifically for Salesforce; runs entirely within the platform

UI control

Customizable via templates and JavaScript overrides

Requires developer-defined LWCs using Quantic building blocks

Customization model

Imperative; customization often requires JS and template overrides

Declarative component composition using native Salesforce conventions

Innovation alignment

New features may require custom implementation or integration effort

Updated to align with Coveo roadmap and Salesforce platform evolution

Modularity

Implementations are typically project-specific

Components can be wrapped and reused across Salesforce sites and pages

Maintainability

Can accumulate technical debt through custom overrides

Easier to maintain due to native tooling, modular design, and platform alignment

Implementation speed

Faster for teams already familiar with JSUI templates

Requires development effort but streamlines long-term scaling in Salesforce

Accessibility

Varies depending on customization and implementation

Inherits Salesforce’s accessibility model through native LWC rendering

Conclusion

JSUI has supported many organizations in building search experiences, but as Salesforce continues to evolve, Quantic offers a future-ready path forward.

Built with Lightning Web Components and designed to run natively in Salesforce, Quantic helps development teams:

  • Reduce complexity

  • Improve maintainability

  • Align with modern Salesforce standards

It enables teams to create scalable, modular search experiences while taking advantage of Coveo’s latest innovations.

Whether you’re modernizing an existing JSUI experience or building a new one from the ground up, Quantic provides a stable, secure foundation for long-term success within the Salesforce ecosystem.

Depending on your requirements, you may also want to consider Coveo Headless or Coveo Atomic. Headless gives you full control over UI development and is framework agnostic, while Atomic provides a set of prebuilt, customizable web components for building search UIs outside of Salesforce environments.

For help mapping JSUI features to Quantic components, and evaluating all modern Coveo frameworks to find the best fit for your migration, see JSUI component equivalences.