Page Moderation - Chrome Extension

Overview

Page Moderation is a Chrome extension designed for systematic web page evaluation by moderators. The tool enables recording time spent on evaluation, quickly classifying pages as OK or error, and exporting data for further analysis.

Key Features

Session Timer Measuring net time spent on evaluation with start/pause/stop functionality.

Quick Evaluation One-click page classification as OK or Error.

Keyboard Shortcuts

• Alt+M - open panel
• Alt+O - Quick OK
• Alt+E - Quick Error

Error Presets Customizable error categories with note-taking capability.

Data Export Export to CSV and JSON formats for further analysis and processing.

Google Forms Integration Automatic form pre-filling from collected data.

Multi-language Support for English and Czech.

Themes Light/dark/system mode for comfortable usage.

Privacy-first All data remains local in the browser.

Technologies Used

Frontend

• React 18 + TypeScript (strict mode)
• Vite - build tool
• Chrome Extension Manifest V3
• Shadow DOM - style isolation
• Chrome Storage API - local persistence

Architecture

• Background Service Worker - session state management, data export
• Content Scripts - floating panel, forms, UI injected into pages
• Shadow DOM - style isolation from host page
• Message Passing - inter-component communication

Privacy and Security

The extension requires no external servers and all data remains stored locally in Chrome Storage API. No personal data is sent to third parties.

Results

• Fast and efficient web page evaluation
• Accurate time tracking for evaluation sessions
• Easy data export for analysis
• Secure local data storage in browser
• Intuitive control with keyboard shortcuts