For Next.js Developers Who Struggle With Server Components

Finally Use Server Components With Confidence

Build performant, maintainable and professional Next.js applications.

Server & Client Component Ultimate Guide gives you a clear roadmap and confidence to choose the right component type for the job.No more hydration bugs. No more rewrites. Just clean, scalable components.

Quiz: Is Server And Client Component Ultimate Guide for you?

1. Are you new to Next.js and totally confused by server and client components? This guide gives you foundational and crystal-clear understanding of when to use which — so you stop second-guessing yourself and start building with confidence.2. Do you default to using client components for everything — “just to be safe”? This guide shows you why that’s slowing down your app (and quietly damaging your reputation), and teaches you how to confidently switch to the right component for the job.3. Have you already shipped apps with Next.js but still feel unsure if you’re using server and client components correctly? You’ll finally gain the clarity and confidence you’ve been missing — and avoid common hydration issues, rendering bugs, and costly re-renders.


If any of these sound familiar… then this Ultimate Guide is for you!

Your Instructor

Tuomo Kankaanpää

Tuomo Kankaanpää. Senior full-stack web developer with over 10 years of experience building complex applications, leading teams, and staying at the forefront of modern web technologies. Taught millions through his YouTube channel.

Few data points to show, when it comes to Next.js and web development, I know what I’m talking about!

  • Over 10 years of experience building real-world web applications

  • Over 10k combined social media followers

  • Taught Next.js on Youtube for the past 5 years

No more confusion about Server Components…

Finally, a clear path to mastering modern Next.js architecture.All mid-level developers wrestle with the same 8 problems:

  • Architecture Anxiety: You’re not sure how to structure your app to actually benefit from server components.

  • Real-World Blackout: You can’t find real-world codebases that really use both server and client components properly.

  • Prop & State Paralysis: You don’t understand how to pass data between server and client components—so you avoid it.

  • Over-Reliance Mode: You’re stuck using client components for everything because server components feel too confusing.

  • Component Crashland: Your app breaks when you mix the two component types—and you don’t know why.

  • Decision Fatigue: You’re constantly asking, “Should this be a server or client component?” with no clear criteria.

  • Security Blindspot: You don’t know how to protect server-only logic or keep sensitive code off the client.

  • Confidence Gap: You second-guess every architecture decision—and it slows down your entire build.

And in Server and Client Component Ultimate Guide, I'll help you eliminate each of these.

Build Performant Applications — Achieve Perfect Lighthouse Scores

The biggest mistake Next.js developers make?Using Client Components for everything.The easy way is to use Client Components for everything and skip using Server Components all together. And this might feel like a viable option because the application will work even if a component that should be Server Component is added as a Client Component. And it is so easy to get rid of that pesky hydration error by just converting the Server Component to Client Component.But as a result, the application will be slow and hard to maintain, not to mention the user experience will be awful.

Choose The Right Component For The Job

Second biggest mistake Next.js developers make?Wasting time asking “Should this be a server or client component?”.If you are always unsure whether to use Server or Client Component, it eats time and hinders your productivity. What you need is a framework that you can apply each time you find your self asking this question, and by using it you will be 100% sure which component type to use.And this framework is not complicated or hard to use. It is as simple as asking 2-3 clear questions and you will have your answer.

Build Secure Applications — Handle Sensitive Information With Confidence

Third biggest mistake Next.js developers make?Leaking sensitive information to the client.Security is the foundation of every real world application. Let me ask you a question: If you are not 100% confident that your application is handling sensitive data securely, how can you sleep at night? I know I would sleep terribly. That’s why security should not be an afterthought but an integrated part of building any application.Server and Client Components hinder the line between client and server, and in the process also easily introduce bugs that reveal sensitive information. That’s why really understanding when and where your information is handled is crucial.

How Server & Client Component Ultimate Guide Works

Server & Client Component Ultimate Guide is a 50 page ebook that you will get as a PDF and Notion page.So as soon as you join, you'll get LIFETIME access to this guide.Here's a quick rundown on everything you will find inside the Ultimate Guide (and how they help you choose correct components and build more professional & maintainable applications):

✅ [Chapter #1] Key features breakdown (50€ Value)

The first chapter lays the foundation for the rest of the guide. We break down server and client components in a side-by-side comparison through 8 features:

  • Rendering Location

  • Directive

  • Interactivity

  • Data Fetching

  • Bundle Size Impact

  • Access to Backend

  • Browser APIs

  • React Hooks

✅ [Chapter #2] Server Component Deep Dive (50€ Value)

Inside this chapter on Server Components, you'll learn how to build faster, leaner, and more secure apps by letting the server do the heavy lifting. And you'll also learn when not to use Server Components.

  • Key features that make Server Components essential building blocks

  • Why Server Components are vital for SEO and performance

  • Practical code examples using Server Components

By the end of this chapter, you'll know exactly where Server Components shine — and how to use them to build scalable Next.js apps with confidence.

✅ [Chapter #3] Client Component Deep Dive (50€ Value)

In this chapter, you'll get crystal clear on when and why to use Client Components in Next.js, and how to avoid the most common pitfalls.

  • When to choose Client Components over Server Components

  • How to avoid the #1 mistake developers make with that leads to bloated bundles

  • Code examples of UI interactions, transitions and form logic

By the end, you’ll know how to harness the power of Client Components to build fast, interactive UIs — without slowing your app down.

✅ [Chapter #4] Composition Patterns Walkthrough (20€ Value)

Inside this chapter on Composition Patterns, you’ll learn how to combine Server and Client Components the right way—without breaking performance, interactivity, or your mental model.You’ll understand how data flows, where rendering happens, and how to nest components cleanly in a real-world Next.js app.By mastering these patterns, you’ll stop second-guessing your architecture and build apps that scale without becoming a tangled mess.

  • Code examples on how to use Server Components inside Client Components

  • When to import Client Components inside Server Components (and why it works)

  • How to safely render Server Components as children of Client Components

By the end, you'll know exactly how to compose Client and Server Components without confusion—and build apps that are fast, interactive, and maintainable.

✅ [Chapter #5] Best Practices Checklist (20€ Value)

Inside this chapter on Best Practices, you’ll learn how to structure your components for performance, clarity, and long-term maintainability.These aren’t just theory — they’re the proven habits used by top Next.js developers to keep apps fast, focused, and scalable.Whether you’re building from scratch or refactoring an existing app, these principles will help you write better code, avoid common pitfalls, and make smarter architectural decisions.

  • The secret to clean state management with minimal re-renders

  • How to safeguard sensitive information

  • How you should handle state in your components

By the end of this chapter, you’ll have a rock-solid mental model—and a checklist you can apply to any Next.js project with confidence.

Total Server & Client Component Ultimate Guide Value:
210 €

  • [Chapter #1] Key Feature Breakdown (50€ Value)

  • [Chapter #2] Server Component Deep Dive (50€ Value)

  • [Chapter #3] Client Component Deep Dive (50€ Value)

  • [Chapter #4] Composition Patterns Walkthrough (25€ Value)

  • [Chapter #5] Best Practices Checklist (35€ Value)

But you can get INSTANT lifetime access to all this for just 19€.

And as a reward, you'll also get a special bonus chapter...

✅ [BONUS] Answers To Most Common Questions (35€ Value)

To save you hours of Googling, I’ve included a no-fluff FAQ that answers the most common (and confusing) questions developers have about Server and Client Components.This is your quick-access reference when you’re stuck, second-guessing, or trying to make sense of how everything fits together in a real Next.js app.

Ready To Stop Guessing And Start Using Server And Client Components Confidently?

Tuomo Kankaanpää

If you want to:

  • Build with more clarity, reduce tech debt from the start, and be a professional full-stack developer

  • Stop second-guessing your stack decisions and feel like you’re building apps that scale and impress users, colleagues and recruiters

  • Stop wasting time debugging hydration issues

  • Confidently use server components in production, avoid stale data, and stop feeling like you’re flying blind with performance and correctness

  • Build more interactive and dynamic apps without getting stuck or blocked by framework limitations

  • Stop bloating your app, cut down on bundle size, and make your app faster and cheaper to run

  • Finally be able to ship new features without dreading hydration errors or weird bugs every time you deploy

  • Stop relying on hacks and useEffect workarounds, build faster pages, and feel confident building real apps the right way

  • Stop second-guessing yourself, ship faster, and finally feel like you understand how Next.js is supposed to be used.

Then this guide is for you!