Parsely - Browser Copilot

About

Parsely - Browser Copilot puts a Claude AI chat panel right next to whatever you're reading — powered by your existing claude.ai account. No API key, no extra subscription, no setup.

Press ⌘E (Mac) or Ctrl+E (Windows) on any webpage and a side panel opens that already knows what you're looking at. Ask a question. Claude answers with full context of the page.

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FEATURES
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Page-Aware Chat
The side panel reads your current page automatically. Ask questions, request explanations, or have Claude dig into any part of the content. Switches context automatically when you change tabs.

10 Built-in Skills (/commands)
Type / to see instant commands:
• /summarize — Concise summary of the page
• /keypoints — Bullet-point key takeaways
• /eli5 — Explain like I'm 5
• /factcheck — Analyze factual claims
• /devil — Devil's advocate on the arguments
• /actions — Extract action items and next steps
• /reply — Draft a reply to an email or message
• /codereview — Review code for bugs and improvements
• /translate — Translate to/from English
• /proofread — Fix grammar and spelling

You can also create your own custom skills with variables like {{page}}, {{selection}}, {{url}}, {{title}}.

Google Workspace Support
Reads Google Docs, Sheets, and Slides natively — even though they use canvas rendering and are invisible to most extensions. Uses the export API with your existing Google session.

@Tab References
Type @ in the chat or click @Tabs to pull content from any open tab into the conversation. Compare documents, cross-reference sources, connect information across multiple tabs.

File Attachments
Attach text files (.txt, .md, .csv, .json, .js, .py, .html, .css, and more) directly into chat for Claude to read and analyze alongside page content.

Text Selection Tooltip
Highlight any text on any webpage and Ask / Explain / Summarize buttons appear instantly. The AI is always one highlight away.

Past Conversations
Your full claude.ai conversation history is accessible from the sidebar. Load, rename, search, or delete any past chat without leaving the page.

Real-Time Streaming
Responses stream token-by-token, just like on claude.ai. No waiting for a full response to appear.

Minimal, Focused Design
Clean black-and-white interface that complements any page without distracting from your work.

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HOW IT WORKS
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The extension uses your existing claude.ai session (the same one your browser uses when you visit claude.ai). Messages go directly from your browser to claude.ai. No intermediary server. No stored credentials. Your usage counts against your normal claude.ai quota (Free or Pro).

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PRIVACY
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• No data leaves your browser except to claude.ai
• Page content is sent to Claude only when you ask a question
• Custom skills are stored locally on your device
• No analytics, no tracking, no advertising networks
• Fully open source — every line of code is readable on GitHub

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REQUIREMENTS
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• Chrome 116 or later
• An active claude.ai account (Free or Pro)
• Must be logged into claude.ai in your browser

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OPEN SOURCE
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Parsely - Browser Copilot is fully open source. Read, audit, and contribute at:
https://github.com/ankitsherke/claude-sidekick