I built an Aadhaar QR reader that works 100% offline — no server, no data leak

Short summary

Developer built a fully offline Aadhaar QR code reader that decodes identity details in the browser using vanilla JavaScript and WebAssembly, with zero network requests or data storage. Uses native Web APIs and open-source libraries (jsQR, openjpeg.js) to provide privacy-first verification without backend infrastructure.

• •Reads Aadhaar Secure QR codes entirely client-side with no data leaving the device
• •Uses vanilla ES modules, WASM for JPEG 2000 decoding, and native browser APIs
• •Includes live camera scan, image upload, 3D card flip UI, and shareable results via URL encoding

Generated with AI, which can make mistakes.