What it is
A micro-frontend architecture composes an interface from several independently built and deployed bundles rather than one monolithic application. Each bundle owns a domain, ships on its own release cadence, and is developed by the team responsible for it.
Why it matters
It is what stops a large frontend becoming a single release train where every change waits on every other. On Salesforce it also means a team can ship its own surface without redeploying the whole interface, while every bundle still shares one org’s data and permission model.
Key components
- Independently deployable bundles
- Domain ownership per bundle
- Independent release cadence
- Shared data and permission model
How it connects
On Salesforce each piece is a UI Bundle targeting the surface it belongs on — an internal app, an Experience site — so the composition is a deployment decision rather than a framework feature.
Good to know
Salesforce does not ship a "micro-frontend" product. It is an architectural pattern you compose from UI Bundles, and it is worth ruling out for a small app: the coordination cost is real and only pays off at scale.
Related terms
Headless Architecture
A software design pattern that separates backend logic and data from the presentation layer, letting any frontend — UI, API, agent, or CLI — consume the same business capabilities.
Salesforce Multi-Framework
A framework-agnostic Salesforce runtime that lets a standard React app run natively on the platform, with Salesforce authentication, security and governance applied automatically.
UI Bundle
The Salesforce metadata type that packages a Multi-Framework app for deployment, declaring in .uibundle-meta.xml which surface it targets.
Micro-Frontends in practice
Articles from the Funnelists Team that put this term to work.
Decouple Salesforce Frontend: Replace Experience Cloud with Your Own React Stack
Solution architects and Salesforce admins can now run full React apps natively on the platform. Learn how Multi-Framework removes Experience Cloud constraints while keeping data, security, and governance inside Salesforce.
Build Scalable Customer-Facing Apps on Salesforce Beyond Experience Cloud Limits
Page view caps, concurrent user limits, and API quotas are what a portal hits first. Headless architectures, React via Multi-Framework, and Agentforce deliver custom branded experiences while keeping Salesforce governance intact.