Next.js vs React — which should you build your web application on?
Next.js vs React — which should you build your web application on?
Web & App Development • technical guide
Table of Contents
What React is and what Next.js adds to it
React is a client-side JavaScript library for building user interfaces. Next.js is a full-stack React framework that adds server-side rendering (SSR), static site generation (SSG), file-based routing, API routes, and Server Actions out of the box.Need a custom quantitative solution?
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- **Client-Side Rendering (Plain React)**: Initial bundle loaded into browser, rendered entirely via JS. Ideal for internal administrative dashboards behind login screens where SEO is irrelevant. - **Server-Side Rendering (Next.js)**: HTML generated on server per request. Essential for customer-facing web applications, e-commerce, and SaaS platforms that rely on organic Google/Bing search traffic.What PSI Square uses and why
For 95% of web application builds, PSI Square chooses Next.js App Router. It combines speed, server-level database querying, automatic image optimization, and dynamic SEO capabilities into a unified codebase.About the PSI Square Team
We are a team of quantitative developers, AI system architects, and full-stack software engineers specializing in execution latency optimization, autonomous systems orchestration, and custom broker integrations.
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