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Next.js Security Headers & Best Practices (2026)

CSP with nonces, X-Frame-Options, CORS, CSRF in Server Actions, XSS prevention, SQL injection with ORMs — the security checklist for production Next.js apps.

July 1, 202611 min read

React

Next.js Environment Variables: The Complete Guide (2026)

NEXT_PUBLIC_ prefix, .env files hierarchy, type-safe env with t3-env and Zod, Vercel secrets, Docker build-time vs runtime — everything about env vars in Next.js 15.

June 29, 202610 min read

React

React Suspense & the use() Hook: Complete Guide (2026)

How React Suspense actually works, the use() hook for unwrapping promises and context, error boundaries, nested Suspense, and how it all fits with Next.js Server Components.

June 29, 202611 min read

React

Next.js Dynamic Imports & Lazy Loading: The Complete Guide (2026)

next/dynamic vs React.lazy, ssr: false for client-only components, code splitting strategy — everything you need about lazy loading in Next.js 15.

June 26, 20269 min read

React

React Context vs Zustand: When Context Is Enough (and When It Isn't) (2026)

React Context isn't just for theming, and Zustand isn't always the answer. Here's when to use each, why Context causes re-renders, and how to fix it.

June 25, 202610 min read

React

React 19 useTransition & useDeferredValue: When to Use Which (2026)

useTransition and useDeferredValue solve different problems. Learn the real difference with practical examples: form loading states, live search, and navigation.

June 24, 202610 min read

React

Next.js Partial Prerendering (PPR) Guide (2026)

Master Next.js Partial Prerendering: combine static and dynamic rendering on the same page using Suspense boundaries. Real patterns included.

June 23, 202611 min read

React

Next.js 15 SEO: metadata, OG Images, Sitemap, and Structured Data (2026)

Complete SEO guide for Next.js 15 App Router. generateMetadata, dynamic Open Graph images, sitemap.xml, robots.txt, JSON-LD structured data, and canonical URLs.

June 21, 202611 min read

React

Next.js 15 Error Handling: error.tsx, Server Actions, and Sentry (2026)

Complete guide to error handling in Next.js 15. error.tsx boundaries, global-error.tsx, typed server action errors, and Sentry integration in production.

June 18, 202610 min read

React

next-intl: The Complete Next.js i18n Guide (2026)

Add internationalization to Next.js 15 App Router with next-intl. Middleware locale detection, type-safe translations, Server Components, pluralization, and real production patterns.

June 12, 202614 min read

React

T3 Stack Complete Guide (2026): Next.js, tRPC, Drizzle & Neon

Build a full-stack TypeScript app with the modern T3 Stack. Next.js 15 App Router, tRPC v11, Drizzle ORM, Neon Postgres, Clerk auth — real code from scratch.

June 12, 202615 min read

React

Best Tailwind CSS UI Libraries in 2026 (Beyond shadcn/ui)

10 Tailwind CSS component libraries compared with real code. shadcn/ui, daisyUI, HeroUI, Tremor, Headless UI and more — find the right one for your project.

June 9, 202613 min read

React

TanStack Router Complete Guide 2026: Type-Safe React Routing

TanStack Router is replacing React Router in 2026. File-based routing, type-safe search params, route loaders, and end-to-end TypeScript. Complete setup guide.

June 8, 202611 min read

React

Better Auth in Next.js 2026: The Complete Setup Guide

Better Auth reached 100K weekly downloads in 2026. Complete guide to setting it up in Next.js 15 with Drizzle ORM, email/password, OAuth, and session management.

June 5, 202613 min read

React

Prisma vs Drizzle ORM 2026: Drizzle Just Overtook Prisma in Downloads

Drizzle ORM surpassed Prisma in weekly npm downloads in 2026. Here's a real comparison — performance, DX, migrations, serverless, and when to choose each.

June 5, 202612 min read

React

React 19 Form Hooks: useActionState, useFormStatus, and useOptimistic (2026)

Complete guide to React 19's new form hooks in Next.js 15. useActionState replaces useFormState, useFormStatus for submit states, and useOptimistic for instant UI.

June 5, 202611 min read

React

SSE vs WebSockets in Next.js App Router: Real-Time Done Right (2026)

SSE or WebSockets in Next.js 15? Learn when each breaks on Vercel, how to implement both with App Router, and which one your app actually needs.

June 3, 202611 min read

React

Resend + React Email in Next.js: Transactional Emails That Work (2026)

Complete guide to transactional emails in Next.js 15 with Resend and React Email. Type-safe setup, templates, server actions, error handling, and testing.

June 3, 202610 min read

Featured

React

7 React Anti-Patterns Killing Your Performance (2026)

The 7 React mistakes that slow down real apps — with before/after code showing exactly what senior developers do instead.

May 31, 202614 min read

React

Next.js Caching Explained: The Complete Guide (2026)

Next.js App Router has 4 caching layers. Most developers fight them instead of using them. This guide explains each one, when it applies, and exactly how to invalidate it.

May 29, 202614 min read

React

Feature Flags in Next.js from Day 1 (2026 Guide)

Vercel Edge Config vs PostHog vs LaunchDarkly — how senior engineers ship safely with feature flags, gradual rollouts, and kill switches in production.

May 25, 202615 min read

React

Clerk vs Better Auth for Next.js in 2026: The Honest Comparison

Clerk vs Better Auth — pricing, CVEs, self-hosting, and when to switch. Everything senior devs need before choosing auth for their Next.js app.

May 20, 202614 min read

React

Next.js Middleware Complete Guide (2026)

Master Next.js middleware for authentication, redirects, A/B testing, rate limiting, and i18n. Covers matcher config, Edge Runtime, Clerk integration, and production patterns.

May 19, 202612 min read

React

Testing Next.js 15 with Vitest and Playwright (2026)

Set up Vitest for unit tests in Next.js 15 App Router plus Playwright for e2e. Covers Server Components, Server Actions, mocking, and CI setup.

May 15, 202613 min read

React

Clerk + Next.js Authentication Complete Guide (2026)

Add auth to Next.js 15 with Clerk: middleware, Server Components, Client Components, webhooks, organizations, and custom pages. Full working setup.

May 14, 202612 min read

React

React Hook Form + Zod Complete Guide (2026)

Master form validation in React with React Hook Form v7 and Zod. Covers useForm, zodResolver, useFieldArray, Server Actions, and shadcn/ui integration.

May 14, 202611 min read

React

tRPC Complete Guide for Next.js (2026)

Learn tRPC v11 with Next.js App Router: routers, procedures, context, middleware, Zod validation, and server-side callers. Full working setup.

May 12, 202613 min read

React

Next.js App Router Complete Guide (2026)

Master the Next.js App Router: layouts, loading UI, error boundaries, parallel routes, intercepting routes, streaming, and the mental model that makes it all click.

May 11, 202614 min read

React

React Server Actions Complete Guide (2026)

Master Server Actions in Next.js 15 and React 19: forms, mutations, useActionState, Zod validation, file uploads, revalidation, and when to skip API routes entirely.

May 8, 202612 min read

React

TanStack Query v5 Complete Guide (2026)

Master TanStack Query v5 with React and Next.js: useQuery, useMutation, caching, infinite scroll, suspense, and every breaking change from v4. Real code, real patterns.

May 6, 202614 min read

React

Zustand Complete Guide: React State Management (2026)

Master Zustand — the 10M+/week React state library. Stores, TypeScript, slices, persist, devtools, and real patterns for Next.js 15 apps.

May 3, 202611 min read

React

shadcn/ui + Next.js 15: Complete Guide to Building Production UIs (2026)

Master shadcn/ui with Next.js 15. Setup, theming, forms with Zod, data tables, dialogs, toasts, and dark mode — with real production-ready code.

April 30, 202612 min read

React

Drizzle ORM + Next.js 15: Complete Guide (2026)

Learn Drizzle ORM with Next.js 15 App Router. Schema definition, migrations, type-safe queries, relations, transactions — and why developers are switching from Prisma.

April 29, 202612 min read

React

Supabase + Next.js 15: Complete Full-Stack Guide (2026)

Build a full-stack Next.js 15 app with Supabase. Covers auth, database with RLS, realtime subscriptions, file storage, and middleware — with working TypeScript code.

April 28, 202613 min read

React

Vercel AI SDK v4: Build a Streaming AI Chat with Next.js 15 (2026)

Complete guide to Vercel AI SDK v4 with Next.js 15 App Router. Streaming chat, tool calls, generateObject, and multi-step agents — with real code.

April 28, 202611 min read

React

Next.js Authentication with Auth.js (NextAuth v5) 2026

Complete guide to adding authentication to a Next.js 15 app. OAuth providers, credentials, protected routes, middleware, and database sessions with Prisma.

April 24, 202611 min read

React

Next.js Performance Optimization: 100/100 Lighthouse Score (2026)

Practical Next.js performance guide — images, fonts, bundle size, caching, Core Web Vitals. Real techniques that move Lighthouse scores from 60 to 100.

April 17, 202611 min read

React

Next.js Full-Stack TypeScript Tutorial: Build a Real App in 2026

Step-by-step tutorial to build a full-stack app with Next.js 15, TypeScript, Prisma, and PostgreSQL in 2026 — from setup to deployment on Vercel.

April 16, 202615 min read

React

Next.js 16: Turbopack Is Now Default and Everything Is Faster

Next.js 16 ships with Turbopack as the default bundler — up to 10x faster builds, instant HMR, and full Webpack compatibility. Here's everything that changed and how to upgrade.

April 14, 20267 min read

React

React 19: Every New Feature Developers Need to Know

React 19 is stable. Here's every new feature — Actions, useActionState, useOptimistic, Server Components, ref as prop, and more — with real code examples.

April 9, 20269 min read

React

React Compiler 1.0: Delete useMemo, useCallback and React.memo

React Compiler 1.0 is stable and it auto-memoizes your components. Here's what you can delete from your codebase and how to install it today.

April 8, 20267 min read

React

Next.js Server vs Client Components: Complete Guide (2026)

Master the difference between Server and Client Components in Next.js. Learn when to use each, the composition pattern, and avoid the most common mistakes.

April 7, 202610 min read

Featured

React

Top 10 React Component Libraries You Need in 2026

A comprehensive guide to the best React component libraries in 2026 — from headless to full-featured, with honest trade-offs for every project size.

January 10, 202512 min read