Vantage | Collaborative Web Highlighter Chrome Extension Demo
Vantage is a collaborative, real-time web highlighter built as a Chrome Extension. Say goodbye to taking messy screenshots and copy-pasting text into separate documents. Vantage lets you highlight directly on the web, add contextual notes, and instantly share your perspective with teammates in a live, ephemeral workspace.
Features showcased in this demo:
• Context-Aware Text Anchoring (Highlights survive page reloads and DOM changes)
• Almost Real-Time Multiplayer Syncing via Firebase Server-Sent Events (SSE)
• Cross-Domain Knowledge Dashboard
• Role-Based Room Permissions & Key Generation
• One-Click Markdown Harvesting
💻 Built with Vanilla JavaScript, Chrome Manifest V3, and Firebase REST API.
🔗 Source Code: https://github.com/Dhwani-S/vantage