Asterysk

Asterysk brings AI-powered chat to every webpage you visit. Ask questions, summarize articles, analyze content, and get instant answers — all without leaving the page.

Supported AI Providers
Choose your preferred AI provider and bring your own API key:
• Google Gemini (Gemini 3 Pro, Gemini 3 Flash)
• OpenAI (GPT-5, GPT-5 mini etc)
• Anthropic Claude (Opus, Sonnet)

Key Features
• Chat overlay on any webpage — floating popup or sidebar mode
• Page-aware conversations — Asterysk can read the current page to give contextual answers
• Screenshot analysis — capture and discuss what you see on screen
• Slash commands — /summarize, /clear and more
• Per-site conversation history — pick up where you left off
• Right-click context menu — send selected text directly to the chat
• Dark and light theme support
• Customizable system prompts
• Keyboard shortcut (Cmd+Shift+L / Ctrl+Shift+L) to toggle

Privacy First
• Your API keys are stored locally in your browser — never sent to our servers
• Conversations are saved to local browser storage only
• No analytics, no tracking, no data collection
• We have no servers — all AI requests go directly from your browser to the provider you choose

How to Get Started

Install the extension
Click the Asterysk icon or press Cmd+Shift+L (Ctrl+Shift+L on Windows/Linux)
Open Settings to add your API key for any supported provider
Start chatting on any webpage