This content originally appeared on DEV Community and was authored by Gabrielle Eduarda
Yesterday I shared the advantages of microfrontends — the autonomy, scalability, and flexibility they bring to frontend development.
But every architectural decision has its price.
Microfrontends introduce a layer of complexity that’s easy to underestimate at first. Teams often fall into the trap of focusing on their immediate gains without considering the long-term impact on performance, cohesion, and maintainability.
Let’s talk about the other side.
- Increased Complexity in Composition and Integration Coordinating multiple microfrontends — even when developed independently — introduces a new layer of orchestration. You’ll need to decide how and where to stitch these pieces together:
Server-side composition
Client-side runtime loading
Edge-side includes
Build-time integration
Each comes with trade-offs in terms of caching, latency, versioning, and developer experience. What used to be a simple router or layout now requires infrastructure decisions and glue code that didn’t exist before.
- Performance Overhead Without proper design, microfrontends can significantly hurt performance:
Multiple bundles being loaded (duplicate dependencies, redundant frameworks)
Increased Time to First Byte (TTFB) due to composition layers
Runtime integration that introduces latency or flashes of unstyled content (FOUC)
What was once a single optimized SPA becomes a fragmented collection of apps, each with its own JS, CSS, and lifecycle.
You’ll need aggressive optimization strategies — shared dependencies, module federation, lazy loading — just to match the performance you had before.
- Shared State and Cross-Team Contracts Splitting the UI doesn’t mean you split the user. Many applications still require global state, shared session info, routing context, and accessibility standards.
Microfrontends make this harder to manage. Either you create a shared state manager (which becomes a coupling point), or you risk duplicated logic, desync, and inconsistent UX.
Maintaining contract boundaries between teams — especially as features evolve — requires discipline and strong governance. Otherwise, teams accidentally create tight dependencies across microfrontends, defeating the purpose.
- Infrastructure and DevOps Overhead Microfrontends shift the complexity from code to DevOps:
Multiple CI/CD pipelines
Versioning, release coordination
Feature flag consistency
Monitoring and observability per fragment
Suddenly, your delivery process needs to track dozens of deployable units and how they interact. If your team isn’t prepared for this level of orchestration, velocity may drop — not rise.
- Fragmented Developer Experience (DX) From onboarding to debugging, microfrontends can fracture the developer experience:
New devs may need to spin up 3–5 apps to test a full flow.
Cross-team debugging becomes harder when logs, stack traces, and errors are split across systems.
Tooling and standards can drift if not strongly aligned across teams.
Without a unified DX strategy, productivity suffers. The cost of “freedom” can quickly become cognitive overload.
So... when should you not use microfrontends?
When your app is small or managed by 1–2 teams
When your pain points are organizational, not architectural
When your backend is still monolithic and you don't gain real domain separation
When you're not ready to invest in a strong DevOps and governance culture
When you're doing it just because “it’s trending”
Microfrontends are a strategic tool — not a default pattern.
Use them when independent ownership and domain alignment bring real business value. Avoid them when the cost outweighs the coordination gains.
Sometimes, a well-modularized monolith — with a shared design system and clear boundaries — is all you need.
This content originally appeared on DEV Community and was authored by Gabrielle Eduarda
Gabrielle Eduarda | Sciencx (2025-07-08T01:16:38+00:00) Microfrontends: the cost of modularity — and when not to use them. Retrieved from https://www.scien.cx/2025/07/08/microfrontends-the-cost-of-modularity-and-when-not-to-use-them/
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