Micro Frontends Are Back: How AI Changed Frontend Architecture

📦 Frontend Architecture Guide [2026 Update]: https://advancedfrontendcourse.com/#guide ⭐ My Frontend Course: https://advancedfrontendcourse.com?utm_source=youtube&utm_content=mfe-2026 📧 Connect with me: https://www.linkedin.com/in/dmitriy-zhiganov --- Videos and playlists: 🎬 Frontend Architecture (from MVC to Clean Architecture): https://youtu.be/ixee55xm_d8 → System Design Playlist: https://www.youtube.com/playlist?list=PL4OG1laG0gW9BNGye9I8LYroxIDoMU5Er → Scaling Web Applications Playlist https://www.youtube.com/playlist?list=PL4OG1laG0gW-yVyX7mq-HYL-Ti4IFYNku → System Design Interview Playlist https://www.youtube.com/playlist?list=PL4OG1laG0gW_AcchCg1_adOzDAtnxMjPN --- Micro-frontends were the big hype a few years ago — but most teams who tried them ended up with more problems than they solved. Now AI coding tools are changing how we think about frontend architecture, and the answer to "should I use micro-frontends?" looks different in 2026. In this video we cover what micro frontends are, the tools and integration approaches in 2026 (Module Federation, Single SPA, iframes, Web Components), why a modular monolith is (usually!) the better choice, and how AI affects the decision. Timecodes 0:00 Intro 0:50 What are micro frontends 3:53 Agenda 5:04 Monolith vs Modular Monolith vs Micro Frontends 8:56 How splitting works 12:57 The shell app 14:46 Build-time, server-side, client-side composition 19:23 Module Federation, Single SPA, iframes, Web Components 27:56 Why micro frontends rarely useful 30:39 When to use them and when not to 32:30 Modular monolith? 39:08 The AI angle 44:22 Decision framework 45:24 Outro