React Components vs Spaghetti: 5 Signs Your UI Is Becoming Unmaintainable

Last week I opened a React component… and immediately closed it. Not because it was complex. But because it felt hostile. You know that feeling: the file keeps scrolling, props are flying around, and every small change feels like it might break something completely unrelated. That’s not complexity. That’s entropy. And if you’ve been building UIs for a while, you’ve probably seen it happen slowly, almost invisibly. Let’s talk about the signals before things get out of hand. TL;DR If your React components start feeling hard to read, fragile, or unpredictable, your UI is likely becoming unmaintainable. The most common signals are oversized components, props drilling, unclear responsibilities, duplication, and messy conditionals. You don’t need a rewrite, just small, consistent refactoring habits. Table of Contents The Problem with “It Still Works” 1. The God Component (Too Big to Understand) 2. Props Drilling Everywhere 3. Confusing Responsibilities 4. UI Logic Duplication 5. Conditional