Google Maps Place Ranker — SEO Tool Extension

Chrome Extension

About

Chrome extension that silently collects place data from Google Maps search results as you scroll, displaying them in a ranked, filterable panel with smart sorting and CSV export for SEO and market research.

My Role

Built a zero-dependency extension with auto-collection via MutationObserver, smart ranking algorithms, 60+ place type category filters, and CSV export — all running locally with no external API calls.

Core Capabilities

• Auto-collection of places while scrolling Google Maps
• Smart ranking by rating, review count, or name
• Filtering: min reviews, rating range slider, open-now toggle, text search
• 60+ place type categories with quick search buttons
• Rich cards with thumbnails, ratings, hours, and review snippets
• CSV export for filtered results with data accumulation across searches

Architecture

• Chrome Manifest V3 with vanilla JavaScript (zero dependencies)
• MutationObserver for automatic place detection on scroll
• Chrome Storage API for data persistence across sessions
• Dark mode auto-adaptation matching Google Maps theme
• Floating collection counter for non-intrusive UX

Tech Stack