Rubycite web clipper

Browser extension that clips the active web page to clean Markdown, with math formula support, clutter removal, and a built-in editor with live KaTeX preview.

Part of the RubyCite product family. For PDF conversion and more advanced features, use the RubyCite desktop application.

Features

• Convert & download Markdown in one click
• Convert & edit in a split-pane editor with live preview
• Extract LaTeX from MathJax / KaTeX pages
• Remove navigation, cookie banners, ads, and sidebars (Mozilla Readability + filters)
• UI in 8 languages: English, 简体中文, Deutsch, Español, Français, 日本語, 한국어, العربية

Load unpacked (development)

1. Clone this repository.
2. Open edge://extensions or chrome://extensions.
3. Enable Developer mode.
4. Click Load unpacked and select this folder.

Build store package

# Optional: refresh icons from RubyCite desktop project
python3 scripts/generate-icons.py

# Create ZIP for Edge / Chrome Web Store
bash scripts/package.sh
# → dist/Rubycite-web-clipper-<version>.zip

See docs/STORE.md for submission checklist.

Project layout

Path	Purpose
manifest.json	Extension manifest (MV3)
content.js, cleaner.js	Page extraction and cleaning
readability.js	Mozilla Readability (bundled)
popup.*, background.js	UI and editor tab management
src/	Markdown editor, KaTeX, markdown-it
_locales/	Store listing strings
docs/	Privacy policy, store listing notes

Privacy

Conversion runs locally in the browser. Page content is not uploaded to RubyCite servers through the extension. See docs/privacy.html.

License

Copyright 2026 Hongtao Lu

Licensed under the Apache License, Version 2.0.

This project bundles third-party components. See NOTICE.md.