System Design Interview Blog
In-depth articles on System Design concepts that come up most in frontend interviews. Written by developers, for developers.
A practical comparison of Turborepo and Nx — when to use each, how remote caching works, and how to design a monorepo architecture for large frontend teams.
Read article →A complete guide to the four frontend security threats that appear in senior interviews — with attack vectors, concrete code examples, and the exact defenses that work.
Read article →The definitive comparison of JWT and cookie-based auth — token storage, refresh token rotation, httpOnly cookies, CSRF, and the real reasons to choose one over the other.
Read article →A practical guide to when microfrontend architecture makes sense, how Module Federation works, and the real trade-offs that interviewers want you to know.
Read article →A clear, visual breakdown of all four rendering strategies — when to use each, how they affect SEO and performance, and the exact questions interviewers ask about them.
Read article →Every article in this blog has an interactive practice section in JSPrep Pro.
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