e-commerce chrome extension price tracking web scraping Chrome Extension JavaScript Supabase

Daraz Smart Shopper — Shopping Assistant Extension

Chrome Extension

Screenshots coming soon

About

Smart shopping assistant Chrome extension for Daraz.pk that provides deal scores, price tracking, fake review detection, and seller insights directly on product pages.

My Role

Built the full extension end-to-end: deal scoring algorithm analyzing 60+ data points, price history charts with Supabase cloud sync, fake review detection engine, and seller reputation aggregation.

Core Capabilities

Deal Score system (A+ to F) analyzing 60+ data points per product
Price tracking with local + cloud history and inline SVG charts
Fake review detection: 5-star inflation, anonymous reviewers, same-day purchases
Price trend prediction and manipulation detection
Seller reputation aggregation from community data
Smart sidebar for collecting products across pages with CSV export

Architecture

Chrome Manifest V3 with vanilla JavaScript (no build tools)
Supabase backend for cloud price history and Edge Functions
DOM mutation observers for SPA-aware page detection
Inline SVG rendering for price history charts
Chrome Storage API for local data persistence

Tech Stack

JavaScript Chrome Manifest V3 Supabase SVG DOM APIs Chrome Storage API

Secure Check Deposit & Identity Verification

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