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How to Build Dark and Light Mode in React Vite with Tailwind CSS and TypeScript (Step by Step)
16 min readJul 2, 2026

How to Build Dark and Light Mode in React Vite with Tailwind CSS and TypeScript (Step by Step)

A complete step by step guide to building dark and light mode in React Vite using Tailwind CSS v4 and TypeScript, explaining the Context API, localStorage persistence, and why each part works the way it does.

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