Why Codemia Is the Best Platforms for Practicing System Design?

Why Codemia.io is the best place for practicing System Design and DSA in 2026

Hello friends, when I first started preparing seriously for system design interviews, I ran into a big problem:

Most resources either
👉 explain concepts at a high level
or
👉 throw one or two classic questions at you (like URL shortener) and stop there.

But real interviews — especially for mid-level and senior engineers — demand structured thinking, repeated practice, and feedback.

That’s where Codemia really stood out to me. It’s not just another course platform — it’s built specifically for practicing system design the way interviews actually happen.

Let me break down why I think it’s one of the best platforms right now.

Why Codemia Is the Best Place for Practicing System Design and DSA ?

Now, let’s see what does Codemia.io offers and why its one of the best place for practicing System Design and Data Structures and Algorithms, two of the most important topic for any coding interviews.

1. It Focuses on Practice, Not Just Theory

A lot of platforms teach system design like a lecture. Codemia is different — it’s centered around problem-solving.

The System Design section contains a growing collection of real interview-style problems where you have to:

  • Clarify requirements
  • Define constraints
  • Propose architecture
  • Justify trade-offs

It feels much closer to an actual interview than just watching videos. It’s also like Leetcode for System Design where you can solve real System Design problems and build skills online.

Also, If you’re just getting started, they even offer a free course called
Tackling System Design Interview Problems which walks through how to think, not just what to say.

2. Huge and Growing Library of Realistic Problems

One thing I really like is the variety of questions. It’s not just the usual “Design Twitter” and “Design TinyURL”.

You can practice on problems like:

These are exactly the kinds of product-style and infrastructure-style questions that show up in real interviews.

They already have over 80 editorial solutions and they’re also adding 2–3 new editorial solutions every week, which means the platform keeps improving instead of staying static.

Here is a full list of System Design problems you can solve on Codemia.io

They even have this System Design RoadMap, a curated path of 62 essential problems, organized from beginner to expert. If you are serious about your System Design interview, I highly recommend you to solve these problems.

You can start from Level 1 and work your way down.

3. Editorial Solutions That Actually Teach Trade-offs

Apart from a big list of real world System Design problems, Codemia have few more features which makes it one of the best place for System Design interview preparation and one of those is reading other candidates’ answers.

You can check how others are solving problems by looking at their submissions on Codemia.io website.

While reading other candidates’ answers is helpful. Reading a structured editorial that explains trade-offs is even better.

For example, you can try a problem like:

Same for:

These editorials don’t just give a diagram — they walk through scaling decisions, bottlenecks, and trade-offs, which is exactly what interviewers care about.

4. Covers Object-Oriented Design Too (Not Just System Design)

Many interviews — especially at mid-level — include low-level or object-oriented design rounds.

Codemia has a dedicated Object-Oriented Design section where you can practice questions like:

This is super helpful because OOD is often ignored until the last minute.

Here is full list of Object Oriented Problems you can practice on Codemia.io today:

5. Free System Design Problems to Get Started

If you want to test the platform first, there are free system design problems available, such as:

You can also attempt them here:

And even the editorial solutions for these free problems are accessible, which makes it easy to see the quality before committing.

6. Premium Unlocks the Real Depth

To access the full experience, you’ll need Codemia Premium, which gives you:

  • Access to 120+ system design problems
  • 80+ high-quality editorial solutions
  • 120+ DSA Problems
  • All Object-Oriented Design problems
  • AI-powered iterative learning
  • Feedback history on your solutions

You can check the plans here: Codemia Pricing

Right now, Premium is available for $55.20/year, which is almost half of the usual $119. For the amount of structured practice you get, that’s honestly very reasonable compared to most interview prep platforms.

Some advanced (premium) design problems include topics like:

These are much closer to what senior-level interviews look like and if you ask me, I recommend the Codemia lifetime plan because that provides the best value.

Codemia | Master System Design Interviews Through Active Practice

7. Clean UI and Feedback Workflow

This may sound small, but it matters a lot when you’re practicing regularly.

Codemia has:

  • A clean interface on both desktop and mobile
  • A place to write and refine your solution
  • The ability to revisit and improve past answers

That iterative workflow helps you see your thinking evolve over time, which is exactly how system design skills improve.

8. It Pairs Well with DSA Prep Too

While system design is the focus, Codemia also has a DSA section. That’s useful if you’re preparing for companies that combine coding + design rounds.

It’s convenient to keep both types of prep in one place instead of jumping between platforms.

Final Thoughts

That’s all about why Codemia.io is one of the best platform for practicign System Design problems. From my experience, getting good at system design isn’t about memorizing architectures — it’s about practicing structured thinking across many different types of systems.

That’s exactly where Codemia shines:

  1. Large and growing problem set
  2. Real interview-style questions
  3. Detailed editorial solutions
  4. OOD + System Design in one place
  5. Affordable premium for serious prep

If you’re targeting mid-level or senior roles and want a place to practice, compare, and improve your designs, Codemia is definitely worth checking out.

All the best with your System Design interview preparation !!

Why Codemia Is the Best Platforms for Practicing System Design? was originally published in Javarevisited on Medium, where people are continuing the conversation by highlighting and responding to this story.

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