- AI Chrome extensions at a glance
- Eleven AI Chrome extensions to try
- Where to start for your situation
- What Chrome's rules say about your data
- Writing assistants versus browser agents
- Questions to ask before you install an AI extension
- Signs an AI extension would save you time
- My plain advice on choosing an AI Chrome extension
- Frequently asked questions
The best AI Chrome extensions bring AI help to the web pages, inboxes and documents you already use, without copying and pasting into a separate chatbot. Some focus on writing, some summarise videos and pages, and some act as agents that complete tasks for you. Eleven options follow in no particular order.
Switching between a chatbot tab and the page you're working on gets old quickly. Copy, paste, prompt, copy back, fix the formatting. A good AI extension cuts that loop down to a click, right where the work is happening.
The eleven extensions below are listed alphabetically and in no particular order, and every description comes from the tool's own website, read this week. If you want AI from Google itself, my guide on how to use Gemini in Chrome shows what's built in.
AI Chrome extensions at a glance
I checked the free plan column on each tool's own website, as of Oct 2026. Yes means the site names a free plan, a free version, a free tier or an open source version. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a button inviting you to start for free, so check the vendor's page before you sign up.
| Tool | Type | Good for | Free plan |
|---|---|---|---|
| AIPRM | Prompt library extension for ChatGPT and Claude | Ready-made prompts inside ChatGPT | Not stated |
| Compose AI | Writing extension with autocomplete for Chrome | Autocomplete for everyday writing | Yes |
| Eightify | AI YouTube video summariser | Summaries of long YouTube videos | Not stated |
| Grammarly | AI writing assistance | Polishing writing anywhere online | Yes |
| HARPA AI | Browser agent powered by AI | Automating web tasks with AI | Not stated |
| MaxAI | Ask-AI-anything extension | Asking AI about any page | Not stated |
| Merlin | AI chat with many top models | Several AI models in one place | Not stated |
| Monica | All-in-one AI assistant for chat, writing and research | Writing and research help with a free tier | Yes |
| Sider | AI sidebar and agent for the browser | A sidebar for everything you browse | Not stated |
| Tactiq | AI note taker for online meetings | Meeting notes without a bot | Not stated |
| Wordtune | AI writing and rewriting assistant | Rewording sentences to sound right | Yes |
Eleven AI Chrome extensions to try
AIPRM
Best for: Marketers who want a large library of ready-made prompts inside ChatGPT and Claude rather than writing every prompt from scratch.
Compose AI
Best for: People who write lots of emails and messages in the browser and want AI autocomplete as they type.
Eightify
Best for: Busy learners who want the key ideas from long YouTube videos without watching every minute.
Grammarly
Best for: Anyone who wants spelling, grammar and tone help in email, documents and social posts across the web.
HARPA AI
Best for: Power users who want an AI agent that summarises pages, answers emails and automates repetitive web tasks.
MaxAI
Best for: Browsers who want to ask AI questions about whatever page they're reading, from a sidebar that's always close.
Merlin
Best for: Users who want to chat with several leading AI models from one extension instead of switching between sites.
Monica
Best for: Solo business owners who want chat, writing and research help in one assistant, with a free daily allowance.
Sider
Best for: People who want one AI sidebar for chatting, reading and writing alongside every website they open.
Tactiq
Best for: Consultants who want live transcripts and AI summaries of Google Meet, Zoom and Teams calls without inviting a bot.
Wordtune
Best for: Writers who want help rephrasing, rewriting and tightening sentences until they say exactly what they mean.
Want AI doing the heavy lifting in your marketing?
I build the systems that handle the boring 80 percent, so you get your week back. Done properly, with the human kept in.
Where to start for your situation
- Polishing everything you write online: Grammarly or Wordtune.
- Summaries of long YouTube videos: Eightify.
- Meeting notes without a bot: Tactiq.
- Ready-made prompts for marketing: AIPRM.
- Automating repetitive web tasks: HARPA AI.
What Chrome's rules say about your data
The Chrome Web Store's Limited Use policy says extensions may only collect, use or transmit user data that's necessary for the extension's disclosed single purpose. It also limits when that data can be passed to third parties.
That matters because AI extensions often ask to read every page you visit. Before you install one, read its permissions and privacy details, and be wary of any extension whose stated purpose doesn't match what it asks to access.
Writing assistants versus browser agents
Writing assistants help with the words in front of you: grammar, tone, rewording and replies. They're the easiest place to start, because the results are easy to check before you send anything.
Browser agents can read pages, fill in forms and complete multi-step tasks. They save more time when they work, but they need more access and more supervision, so start them on low-risk jobs.
Questions to ask before you install an AI extension
- Which permissions does it ask for?
- Which AI models does it use?
- Does it work on the sites where I spend most time?
- Can I turn it off on sensitive sites like online banking?
- Does it store my prompts and page content?
- Is there a free allowance to give it a fair try?
Signs an AI extension would save you time
- You copy text into a chatbot all day. Bring AI to the page.
- Long videos eat your lunch break. Read a summary first.
- Meeting notes take an hour afterwards. Capture them live.
- You rewrite the same kind of email daily. Get a first draft.
Do you make an AI extension or browser tool? Tool makers can ask to be considered for a featured place on this list.
My plain advice on choosing an AI Chrome extension
Install one extension at a time and use it for a week before adding another. Several AI sidebars fighting for the same corner of every page slow you down, and you'll quickly forget which one does what.
And switch extensions off on banking, health and client portals. If you're tidying up your browser more generally, my roundup of browser extensions to increase productivity has non-AI options worth keeping.
Frequently asked questions
What is an AI Chrome extension?
An AI Chrome extension adds AI features, such as writing help, summaries or chat, to the web pages you visit in the Chrome browser.
Are AI Chrome extensions free?
Several offer free versions or daily free allowances, with bigger plans for heavier use. The free plan column above shows what each tool's own site says.
Are AI Chrome extensions safe?
Many are, but they can read the pages you visit. Check permissions and privacy details, and turn them off on sensitive sites.
Can AI extensions summarise YouTube videos?
Yes. Some extensions summarise videos, articles and PDFs so you can get the main points quickly.
Do AI extensions work in other browsers?
Many work in other Chromium-based browsers such as Edge, and some offer versions for other browsers too.
Will an AI extension slow my browser down?
Most are light, but several running at once can. Keep only the ones you use regularly.
