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Interview questions with answers for 31 technologies, system design and AI agent workflow blueprints, an API reference for 60 technologies, technology handbooks and English vocabulary with Hindi meanings, free to read.
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Interview questionsSubjective and objective questions with model answers, most-asked first.31 technologies
Technology comparisonsThe differences explained: definitions, a comparison table and 40+ difference questions each.37 comparisons
Workflow blueprintsSystem design and AI agent architectures with diagrams, steps and interview questions.118 blueprints
Technology handbooksEvery topic explained with key points, syntax, a worked example and use cases.58 handbooks
API referenceHooks, classes, functions and CLI commands with syntax, parameters and examples.59 technologies
Tech Buzz blogsCommunity-rated deep dives on AI agents, frameworks, cloud and system design, with quick reads and audio.104 articles
English vocabularyWords for work and interviews with Hindi meanings, sentences, synonyms and antonyms.2,091 words
Courses & learning pathsTechnology, system design and language learning paths in English and Hindi.All paths
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The most-read free pages: interview sets, side-by-side comparisons and handbooks.
- Interview setSystem DesignScaling, caching, databases, queues, consistency and classic designs.
- Interview setAgentic AIAgents, tools, planning, memory, guardrails and evaluation.
- Interview setNext.js 16+App Router, Server Components, Cache Components, proxy.ts and Turbopack.
- Interview setReact 19+Actions, use(), useOptimistic, Server Components and the React Compiler.
- Interview setTanStackThe headless, type-safe, framework-agnostic library family.
- Interview setZustandStores, selectors, middleware, persistence and slices.
- ComparisonWhat is the difference between Next.js 16 and TanStack (Start, Router and Query)?Next.js is a full framework built around React Server Components and the App Router. TanStack is a family of headless, type-safe libraries; TanStack Start builds a full-stack framework from TanStack Router and Vite.
- ComparisonWhat is the difference among Redux, Zustand and Redux Toolkit?Redux is the pattern and core library, Redux Toolkit is the official way to write Redux today, and Zustand is a separate, much smaller store with almost no ceremony.
- ComparisonWhat is the difference between n8n and LangChain and LangGraph?n8n is a visual workflow-automation tool that connects apps with nodes and can call AI. LangChain and LangGraph are code frameworks for building the AI agents themselves.
- HandbookGitEvery command you actually use, each with the process to run it: staging and committing, branching and merging, rebase and cherry-pick, remotes, and the several different ways to undo something.
- HandbookModern Full-Stack TechnologiesPractical topics for building, securing, deploying and operating modern TypeScript applications.
- Handbookuv package managerPython projects, interpreters, dependencies, tools, workspaces, builds and reproducible automation.
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