Greeder

A clean reading mode extension.

⏺ Greeder - Clean Reading Mode for Chrome Overview Greeder is a powerful Chrome extension that transforms cluttered web pages into clean, distraction-free reading experiences. With one click or keyboard shortcut (Alt+G), it extracts article content and presents it in a beautifully formatted, customizable reader view. Key Features Smart Content Extraction - Intelligent extraction engine: Combines site-specific rules with Mozilla's Readability algorithm for accurate content detection - Automatic article detection: Pre-checks pages before entering reading mode - Fallback mechanism: If one extraction method fails, automatically tries alternatives - Three-tier rule system: Bundled rules + local cache + cloud updates for optimal performance Customizable Reading Experience - Three beautiful themes: Light, Dark, and Sepia modes for comfortable reading in any environment - Font customization: Choose from 8+ carefully selected fonts including system fonts, serif, sans-serif, and monospaced options - Adjustable font size: 5 size presets from small to extra-large - Line spacing control: 4 spacing options for optimal readability - Flexible toolbar: Position toolbar on top, bottom, left, or right side - Fullscreen mode: Immersive reading with F11 or toolbar button Advanced Annotation Tools - Doodle mode: Draw freehand annotations directly on articles using Fabric.js - Multiple drawing tools: Pen, highlighter, eraser with customizable colors and brush sizes - Perfect strokes: Smooth, natural drawing powered by perfect-freehand library - Non-destructive: Annotations are layered on top without modifying original content Content Editing - Live Markdown editing: Edit extracted content in split-screen view - Real-time preview: See changes instantly as you type - Preserve formatting: Markdown syntax for headers, lists, links, code blocks, and more - Syntax highlighting: Code blocks beautifully highlighted with highlight.js Image Gallery - Lightbox viewer: Click any image to view in fullscreen gallery - Keyboard navigation: Arrow keys to browse, Esc to close - Smooth transitions: Elegant animations between images Export Options - Markdown export: Download original content as .md file - PDF export: Generate professional PDFs with jsPDF - PNG export: Capture full article or selected region as image - Crop tool: Select specific portions to export Smart Blacklist System - Three-tier protection: Built-in patterns + user customization + cloud updates - Automatic filtering: Prevents reading mode on web apps, dashboards, and incompatible sites - Memory feature: Remembers when you manually exit reading mode on specific pages - Domain-level blocking: Wildcards supported (e.g., *.example.com) Internationalization - Bilingual support: Full interface in English and Chinese (中文) - Auto-detection: Matches browser language preference - Remote config: Donation info and changelog localized via backend API Privacy & Performance - Offline-first design: Core features work without internet connection - No tracking: Zero user data collection, no analytics - Minimal permissions: Only requests necessary permissions (activeTab, storage, alarms) - Shadow DOM isolation: Reader UI completely isolated from page styles to prevent conflicts - Per-site settings: Theme and layout preferences saved per hostname Developer-Friendly - Open source: Transparent codebase built with modern web technologies - Manifest V3: Future-proof Chrome extension architecture - Error reporting: Optional anonymous error reports to improve extraction accuracy - Regular updates: Cloud-based rule updates for new websites How It Works 1. Activate: Click extension icon or press Alt+G on any article page 2. Extract: Greeder analyzes the page and extracts main content (title, body, author, date) 3. Render: Content displays in clean reader view with your preferred theme and settings 4. Customize: Adjust fonts, sizes, themes, or add annotations 5. Export: Save as Markdown, PDF, or PNG when finished Use Cases - Research & studying: Read academic papers and long articles without distractions - Content curation: Extract and save articles for later reference - Accessibility: Improve readability with larger fonts and better contrast - Annotation: Mark up articles with highlights and notes - Offline reading: Extract content once, read without internet Technology Stack - UI Framework: Lit (lightweight web components) - Styling: Shadow DOM for complete isolation - Extraction: Custom rule engine + @mozilla/readability - Markdown: marked.js for parsing and rendering - Drawing: Fabric.js 7.1 + perfect-freehand - Export: jsPDF + html2canvas + html-to-image - Build: Vite with dual build system (content + background scripts) Privacy Policy Greeder respects your privacy: - No data collection: We don't collect, store, or transmit personal information - Local storage only: All settings stored locally on your device - Optional error reports: If extraction fails, you can optionally send anonymous error reports (URL + rule ID only) to help improve accuracy - Cloud features: Remote rule updates and config use HTTPS and don't include user-identifying data - No third-party tracking: No analytics, ads, or tracking scripts Permissions Explained - activeTab: Read page content when you activate reading mode (only on active tab) - storage: Save your theme preferences and per-site settings locally - alarms: Check for rule updates periodically (every 12 hours) - host_permissions (api-greeder.freego.dev): Fetch extraction rules and config updates from our backend Support - Telegram Channel: Join @greeder_ext for updates and support - Donations: Support development via Ko-fi, PayPal, or WeChat Pay - Feedback: Report issues or request features through the extension's About page What's New (v1.1.0) - 'Improved: Restored badge overlay on extension icon with status indicators' - 'Added: Green ✓ badge for high confidence (rule-matched) pages' - 'Added: Blue ... badge for loading state' - 'Added: Orange ! badge for manually exited state' - 'Added: InfoQ extraction rule for better article parsing on infoq.com' - 'Infrastructure: Migrated API endpoint to greeder.top/api'