Seller Info Extractor for Sellers

WHAT IT DOES

Seller Info Extractor for Sellers is a browser extension that automatically scans the current webpage for seller information, store names, merchant details, seller ratings, store policies, and business information. It detects seller-related elements by examining class names, IDs, data attributes, and text patterns for keywords like "seller", "store", "merchant", "vendor", or "shop". The extension adds a floating "extract seller" button (🏪) next to each detected seller element, allowing you to select individual seller records for bulk export, capture seller name, store URL, rating, location, store policies, and custom notes. Clicking the button toggles the selection state, and selected sellers are added to a bulk collection. The main panel allows you to export all selected seller information in three formats: CSV (with name, URL, rating, location, and policy columns), JSON (structured data), or formatted text (bullet list with ratings). The panel also displays saved seller history with seller names, ratings, locations, notes, and tags. The extension maintains a seller database per seller with export history, notes, and tags for each tracked seller. All data is stored locally in your browser using GM_setValue, ensuring your seller collections persist across page reloads and browser sessions. This helps sellers, buyers, market researchers, and e-commerce professionals to track and compare seller information across marketplaces, analyze seller performance, and monitor competitive seller data.

WHERE IT RUNS

This extension runs on any webpage that displays seller information, store names, merchant details, seller ratings, store policies, or business information – including e-commerce marketplaces (Amazon, eBay, Etsy, Walmart), online storefronts, seller profile pages, marketplace dashboards, and any page containing seller data. The extension intelligently adapts to different page structures and supports a wide range of common seller information display patterns. No manual configuration is required per site; the extension automatically detects seller elements using a flexible pattern matching system. This makes it ideal for sellers researching competitors, buyers comparing merchants, and market analysts tracking seller performance.

HOW TO USE

Simply install the extension and navigate to any webpage displaying seller information. The extension automatically detects seller elements and places a small "extract seller" button (🏪) next to each one. Click any of these buttons to select that seller for bulk export – the button highlights to show it's selected. Click it again to deselect. As you select sellers, a counter at the bottom-right shows how many you've collected. When ready, click the floating button (🛍️) to open the main panel. Choose your preferred output format (CSV, JSON, or formatted text), then click "Export Selected Sellers" to copy all collected seller data to your clipboard in the selected format. The panel also displays your saved seller history for reference. Add notes about seller reputation, product quality, shipping experience, or any other relevant detail when saving seller information. Use the settings section to enable or disable auto-detection and set your preferred default export format. The "Clear All Sellers" button removes all tracking data when needed.

ONE TECHNICAL SECTION – WHY IT WORKS

The extension employs a multi-layered detection system that identifies seller information with high accuracy. First, it scans the DOM using a comprehensive set of CSS selectors targeting common seller-related class patterns, IDs, and data attributes like "seller", "store", "merchant", "vendor", and "shop". Second, it uses a TreeWalker to examine text nodes for seller-like patterns, capturing seller information that may not be wrapped in typical seller elements. The seller name extraction uses pattern matching with multiple strategies: detecting text following "seller:", "store:", or "merchant:", using data attributes, and extracting names from card headings. The seller URL extraction identifies store links from href attributes and data attributes. The rating extraction identifies numeric ratings from text patterns (e.g., "4.5 stars", "4.5/5") and data attributes. The location extraction identifies geographic information from text patterns and data attributes. The policy extraction identifies store policies from text content and data attributes. Each tracked seller is assigned a unique ID based on the seller name and URL, ensuring that history stays correctly associated. A MutationObserver detects dynamic content updates and re-scans only when new seller elements appear, balancing real-time accuracy with system performance.

THE PANEL – DRAG / PER-SITE POSITION / SNAP / COLLAPSE / RESIZE / ESCAPE

The seller information extraction panel includes a draggable title bar, allowing you to position it anywhere on screen for convenient access during market research. The extension remembers your preferred position per website, so the panel opens in the same location each time you return to that domain. The panel supports snap-to-edge behavior – when dragged near screen edges, it gently snaps into place for a tidy workspace layout. You can collapse the panel down to just its title bar by clicking the collapse button, keeping it accessible without taking up screen space. The seller list and history are contained within a scrollable body, ensuring all content remains accessible even on smaller screens. Pressing the Escape key closes the panel instantly, returning you to your market research workflow.

PLEASE NOTE

This extension requires the free BotGentz extension to be installed and enabled, as it relies on BotGentz's userscript injection and GM_* API shims for cross-browser compatibility. Websites frequently update their HTML structures and class names, which may cause seller detection to break temporarily – we actively maintain the matching patterns and release updates regularly. The extension stores all seller data, export history, and notes exclusively in your local browser storage (GM_setValue); no data is ever transmitted to any external server or third party. You are responsible for backing up your seller tracking data if you switch browsers or clear your storage. The extension does not read, modify, or interfere with any marketplace data, seller listings, or site functionality – it operates solely on the static page content and stores only metadata (seller names, URLs, ratings, locations, policies, and notes) that you explicitly create. Use this tool responsibly for internal market research and competitive analysis purposes.