AI Browser Extension

The AI Browser Extension That Works Inside Any Browser

Side Copilot puts an AI agent in your browser's side panel — research, summarize, and automate without leaving the page or switching to a new browser.

Works in any Chromium browser

Chrome, Brave, Edge, Vivaldi, Comet, Dia — no browser switch required.

AI Agent in your side panel

Automate multi-step research and browser tasks without leaving the page.

Chat with any webpage

Summarize, ask questions, and extract info from the page you are already on.

WHY IT MATTERS

Why use an AI browser extension instead of an AI browser?

AI browsers force you to switch your entire setup. An AI extension brings the same power to the browser you already use — without giving up your bookmarks, profiles, or workflows.

Keep your existing browser

AI browsers ask you to move your whole setup. An extension adds AI to where you already work — bookmarks, profiles, and all.

BYOK — your keys, your data

Use your own API keys from OpenAI, Anthropic, Groq, DeepSeek, or OpenRouter. Your conversations stay yours.

Instant access, zero friction

Open the side panel and the AI is already on your current page. No copy-pasting URLs into a separate chat window.

FEATURES

What Side Copilot AI extension does

1) AI Chat — talk to any webpage

Select text, ask a question, or request a summary. The AI sees the full page context so you get relevant, grounded answers — not generic responses.

Common tasks:

  • -Summarize long articles in seconds
  • -Ask follow-up questions in natural language
  • -Extract action items, key facts, or quotes
  • -Works on docs, blogs, PDFs, YouTube transcripts

Chat mode reads the current page so answers stay relevant.

2) AI Agent — automate browser tasks

Give the agent a goal and let it handle the steps. It can open tabs, read pages, fill in context, and surface results — you stay in control.

Agent handles:

  • -Research a topic across multiple sources
  • -Compare products or services end-to-end
  • -Draft outlines or briefs from live web data
  • -Trigger actions across tabs without manual steps

Agent mode automates multi-step tasks across your open tabs.

3) Vertical Tabs + AI Grouping

The extension also gives you a full vertical tab manager with Spaces for project separation and AI grouping that auto-clusters related tabs as you research.

  • -Arc-style sidebar with full tab titles
  • -Spaces to separate work, study, and personal browsing
  • -AI Grouping clusters related tabs automatically
  • -Cloud sync across devices

Vertical tabs and Spaces keep your browser organized while the AI does its work.

USE CASES

Who uses it

Side Copilot fits into the workflow of anyone who spends time reading, researching, or working inside a browser.

Researchers & analysts

Researchers & analysts

  • -Summarize papers and reports without copy-pasting
  • -Agent opens sources and pulls key data
  • -Group findings by topic in Spaces
Marketers & content writers

Marketers & content writers

  • -Chat with competitor pages to extract positioning
  • -Generate briefs from live web research
  • -Keep each client project in a separate Space
Developers & builders

Developers & builders

  • -Ask questions directly on documentation pages
  • -Agent searches Stack Overflow, GitHub, and docs
  • -Keep all project tabs in one dedicated Space

COMPARE

Side Copilot vs AI Browsers

You don't need to ditch your current browser to get AI. See how Side Copilot stacks up against dedicated AI browsers.

Comparison

Side Copilot vs ChatGPT Atlas

ChatGPT Atlas is a new AI browser. See why an AI browser extension gives you the same power without migrating your setup.

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Comparison

Side Copilot vs Dia Browser

Dia is an AI-native browser. Compare it with Side Copilot to see which AI browsing approach fits your workflow.

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Comparison

Side Copilot vs Perplexity Comet

Comet brings Perplexity into a browser. See how Side Copilot compares as a browser-agnostic AI extension.

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Comparison

The Best AI Browsers of 2025

An overview of AI-native browsers and why an extension might be a smarter starting point.

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FAQS

AI Browser Extension FAQs

An AI browser extension adds artificial intelligence capabilities directly to your existing browser — without needing to install a new browser or change your setup. It lives in the sidebar or popup and can chat with pages, automate tasks, and help you work faster as you browse.

Side Copilot logo

Get the AI browser extension that works in any browser

Install Side Copilot for free. No credit card. No new browser. AI chat, agent mode, and tab management — all in your side panel.