Kaynine Lens

Ask AI about the page you're viewing, keep the source in sight, and save useful answers and context as Markdown.

Kaynine Lens turns Chrome's side panel into an AI reading companion for the page in front of you. Ask questions without leaving the source, follow up in context, and save the useful parts when you are done. READ WITH THE SOURCE IN VIEW Open Kaynine Lens beside an article, report, documentation page, product page, YouTube video, or Bilibili video. It captures the relevant page text—or available video subtitles—so you can ask grounded questions while the original source stays visible. ASK, CLARIFY, AND FOLLOW UP - Summarize long or dense pages. - Explain a selected passage. - Compare claims, details, or options on the page. - Ask follow-up questions in a conversation scoped to the current tab. - Use light, dark, or system theme. SAVE WHAT MATTERS Preview and export the page context and conversation as Markdown. You can optionally include page images in a ZIP archive or send the note to a compatible local Notebook service. YOUR PROVIDER, YOUR KEY Kaynine Lens has no account requirement and no developer-operated AI backend. Bring your own API key and choose DeepSeek, OpenAI, OpenRouter, or a custom HTTPS OpenAI-compatible endpoint. When you send a message, the extension sends your prompt and relevant page context directly to the provider you selected. Kaynine Lens is built for research, technical reading, product evaluation, video review, and pages you need to understand more clearly.