PARKTAG
A smart QR sticker platform for vehicles that lets anyone contact an owner anonymously and gives cities the data to end parking congestion — no app, no phone numbers, just scan.
Privacy-first anonymous messaging, vehicle registration, and city-level congestion analytics.
Overview
ParkTag is a smart QR sticker system, now live in Gangtok, Sikkim, that puts every vehicle one scan away from its owner while keeping both parties' identities and data fully private.
Problem & Solution
Problem: Blocked or improperly parked vehicles are hard to resolve without exposing personal contact details, and cities lack structured data on parking congestion.
Solution: A QR sticker tied to a vehicle that routes anonymous messages to the owner instantly, with zero data exposure and full government compliance.
Technical Architecture
Edge Runtime
Deployed on Cloudflare Workers for low-latency, globally distributed responses.
Messaging Layer
Anonymous message routing from scanner to vehicle owner without revealing phone numbers.
QR Generation
Unique per-vehicle QR codes mapped to registration records.
Privacy Layer
Zero data exposure design — no stored contact details are ever surfaced to scanners.
Compliance
Built to align with government data-handling requirements for public rollout.
Registration Flow
Simple vehicle registration and sticker issuance workflow for owners.
Core Features
- Scan-to-contact anonymous messaging for any tagged vehicle
- 100% anonymous — no phone numbers or personal data exposed
- Vehicle registration with instant QR sticker issuance
- Privacy-first, government-compliant data handling
- City-level congestion and tagging analytics
Implementation Highlights
- Now live in Gangtok, Sikkim with 10,000+ vehicles tagged
- Zero data exposure architecture verified end-to-end
- No app install required — works entirely through browser scan
- Edge-deployed for fast response regardless of location
Challenge
Enabling anonymous vehicle-owner contact without ever exposing personal data, while still making the experience fast enough for real-world street use.
Solution
Built a privacy-first message relay on the edge, decoupling scanner and owner identities completely while keeping the scan-to-message flow near-instant.
Future Roadmap
- Expansion beyond Gangtok to more cities in Sikkim and the North East
- City dashboard for congestion hotspot analytics
- Integration with traffic authority systems
- Multi-language support for wider accessibility
Access Note
Public live demo and repository links are intentionally hidden for this portfolio version.
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