Best AI browser extensions
An AI browser extension puts a model next to the page you are reading: it summarises an article, answers questions about a long document, fills a form or, in the agent kind, clicks through a site for you. The extensions here are open source, so you can see what they send and where. That matters more for an extension than for almost any other tool, because it can read every page you open.
Sidebars, helpers and agents
Sidebars and page assistants are the common kind: select text or open the panel, and ask. Some connect to hosted models with your API key; others run against a model on your own machine, which keeps browsing private.
Browser agents go further and act on the page. They are useful for repetitive web chores and they can make mistakes with real consequences, such as a wrong form submission, so watch them the first few times.
Check permissions first
Look at what the extension asks for when you install it. Read and change data on all websites is common for AI extensions and means exactly that. Prefer extensions that let you limit them to sites you choose, and that say clearly which servers they talk to.
Install from the Chrome Web Store where the project publishes there, so updates arrive signed. The GitHub repo is where you check the code and the issues.
The list
From SkillScout's catalogue, counted on 27 October 2026: 32 entries matched this topic, and these are the 12 with the most GitHub stars, one per project, after a review for false matches. Descriptions are each project's own. Stars show popularity, not fit.
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nanobrowser
Open-source AI agent for web automation. Use your real, logged-in browser to automate daily tasks.
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/nanobrowser/nanobrowser -
chatGPTBox
Integrating ChatGPT into your browser deeply, everything you need is here
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/ChatGPTBox-dev/chatGPTBox -
page-assist
Use your locally running AI models to assist you in your web browsing
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/n4ze3m/page-assist -
chatgpt-advanced
WebChatGPT: A browser extension that augments your ChatGPT prompts with web results.
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/interstellard/chatgpt-advanced -
chat-on-steroids
Cross-platform local MCP capabilities for ChatGPT with Chrome integration, Goal, Compact & Resume, and durable multi-agent workflows.
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/totec448-spec/chat-on-steroids -
amurex
World's first AI meeting copilot → The Invisible Companion for Work + Life
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/thepersonalaicompany/amurex -
BrowserKitten
Paw Work - selection-first web agent for Chrome: select on the live page, describe the outcome, take away an editable office file. BYOK, sandboxed, no server.
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/Player-YN/BrowserKitten -
opendia
Connect your browser to AI models. Just use Dia on Chrome, Arc or Firefox.
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/aeonfun/opendia -
superpower-chatgpt
ChatGPT with superpowers! Search chat history, create folders, export all chats, pin messages, access thousands of community prompts, incognito mode, language and tone...
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/saeedezzati/superpower-chatgpt -
hermes-browser-extension
Browser-native side panel for Hermes Agent, connect web context to your local Hermes runtime.
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/abundantbeing/hermes-browser-extension -
webbrain
Open-source AI browser agent for Chrome and Firefox (monorepo)
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/webbrain-one/webbrain -
Lumos
A RAG LLM co-pilot for browsing the web, powered by local LLMs
Look for it in the Chrome Web Store first; the repo is the source:
git clone https://github.com/andrewnguonly/Lumos
Questions
Are AI Chrome extensions safe?
Some are and some are not. An extension can read the pages you open, so prefer open-source ones with narrow permissions and a clear statement of where your data goes.
Is there an AI browser extension that works with local models?
Yes. Several in this list connect to a model running on your own computer, such as one served by Ollama, so pages are never sent to a hosted service.
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Your own list
This page ranks by popularity. SkillScout's scan ranks by fit: the AI you already use writes a short profile of how you work, and SkillScout scores about 22,000 AI tools against your gaps and hands back a short list with install steps. It is free, and the server never saves your profile.