7 system design resources that actually help you prep

Which system design resource should you use to prep for interviews?

Seven system design resources help you choose the right mix of free guides, courses, and drills.

1. Tech Interview Handbook

The Tech Interview Handbook page is the best starting point if you want one clear map of the interview format before you buy anything. It explains what system design interviews test, who gets asked, and which question types show up most often.

Use it to build your study plan and to sort questions by category. It is especially useful if you are early in prep and need a plain-English overview before moving into deeper practice.

• Back end and distributed system design
• API design
• Object-oriented design
• Front end system design

2. GreatFrontEnd’s Front End System Design Playbook

GreatFrontEnd is the strongest pick if your interviews include client-side architecture or UI-heavy product design. The handbook notes that this playbook focuses on front end systems such as feeds, autocomplete, and image carousels.

Pick this when your role touches product surfaces more than infrastructure. It helps you answer questions about state, rendering, client-server boundaries, and component structure with more confidence.

• News Feed style products
• Autocomplete search
• Image carousel design

3. System Design in a Hurry

System Design in a Hurry is the best free crash course when you need the basics fast. It is written by ex-Meta and Amazon engineers and focuses on delivery, core technologies, and common design tradeoffs.

This is the resource to open when you have limited time and want a practical refresher rather than a long curriculum. The handbook also highlights that it is updated often, which matters if you want current examples and cleaner explanations.

• High-level concepts
• Core storage and delivery ideas
• Worked common problems

4. Grokking the System Design Interview

Design Gurus’ Grokking the System Design Interview is the most established text-first course in the set. It is a good fit if you learn better by reading than by watching videos, and it covers a broad set of classic interview prompts plus a glossary of fundamentals.

Use this if you want structured practice and a reusable reference for common questions. The handbook’s author says he completed it and recommends it to many others, which is a strong signal for interview prep value.

• Text-based lessons
• Popular system design problems
• Glossary of core concepts

5. ByteByteGo

ByteByteGo is the best option if you want a visual course with many deep dives. It starts with system design basics, then walks through more than 10 well-known products and several storage and data systems using diagrams that make the ideas easier to follow.

Choose it if you want a friendly format and you like seeing full examples instead of isolated concepts. It is also a strong choice for mixed experience levels because the explanations are broad enough for beginners and still useful for more senior engineers.

• More than 10 common products
• Chat systems and storage systems
• Diagram-heavy lessons

6. Educative’s System Design Interview Handbook

Educative offers a more interview-focused path with its System Design Interview Handbook and related modern system design course. The emphasis is on how to reason, communicate, and explain scalable systems the way interviewers expect.

This is a good pick if you want guided structure and a polished learning flow. It is less about browsing random articles and more about following a sequence that turns into interview-ready answers.

• Reasoning and communication practice
• Scalable system design patterns
• Case-study driven lessons

7. Gaurav Sen’s System Design Playlist

Gaurav Sen is a strong free video option if you want explanations that feel conversational. The playlist covers many system design topics in a way that simplifies dense ideas for beginners and interview candidates.

Use it when you want to hear ideas explained out loud, or when you are reviewing a topic after reading about it elsewhere. Video learners often get the most value here because the pacing is slower and the examples are easy to follow.

• Topic-by-topic video lessons
• Beginner-friendly explanations
• Free access on YouTube

How to decide

If you are starting from zero, begin with Tech Interview Handbook, then move to System Design in a Hurry or Grokking for structured study. If your interviews are front end heavy, GreatFrontEnd is the most targeted choice. If you learn best from diagrams, ByteByteGo is the clearest paid option.

If you want one free video source, Gaurav Sen is a practical fallback. If you want a guided paid path with interview framing, Educative and Design Gurus are the safest bets.