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Full Stack PIN Code App | React, Node.js, MongoDB, Tailwind

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Apr 7, 2026
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๐Ÿ—บ๏ธ India PIN Code Explorer โ€” Full Stack Project Walkthrough A complete full-stack web app to search, filter, visualize, and export all 1,54,823 India Post PIN codes โ€” built with React, Node.js, Express, and MongoDB Atlas. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ” WHAT THIS PROJECT COVERS โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โœ… National Dashboard with live postal stats (Total PINs, States, Delivery & Non-Delivery offices) โœ… Office Type Breakdown (Head Office, Sub Office, Branch Office counts) โœ… Coverage Matrix โ€” Ranked state distribution with horizontal bar chart (Top 10 states by volume) โœ… Explore Page โ€” Search, filter & export โ€ข Cascading filters: State โ†’ District โ†’ Taluk โ€ข Debounced global search โ€ข CSV export for filtered results โœ… PIN Lookup โ€” Enter any 6-digit PIN to get full record: Division, Region, Circle, Taluk, District, State โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ› ๏ธ TECH STACK โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” Frontend โ†’ React + Vite + Tailwind CSS + Recharts Backend โ†’ Node.js + Express Database โ†’ MongoDB + Mongoose Utilities โ†’ Axios, csv-parse, REST API โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ“ KEY FEATURES โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” - 1,54,823 PIN codes across 35 states indexed - Live API backed by MongoDB Atlas - Delivery vs Non-Delivery gauge chart - Top 10 states ranked by PIN volume - Cascading geographic drill-down filters - Single PIN lookup with full postal metadata - CSV export of any filtered dataset - Seed/import script for custom datasets - Deployed frontend (Vercel) + backend (Node) โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ”— LINKS โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” GitHub โ†’ https://github.com/hanumanraj07/India-Pincode Live โ†’ https://all-india-pincodes.vercel.app/ โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿท๏ธ TAGS โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” #ReactJS #NodeJS #MongoDB #FullStackProject #WebDevelopment #MERN #IndiaPostPinCode #TailwindCSS #ExpressJS #JavaScript #ProjectShowcase #OpenSource

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Full Stack PIN Code App | React, Node.js, MongoDB, Tailwind | NatokHD