AI Chrome Extensions Actually Worth Installing in 2026

The Chrome Web Store has roughly eleven thousand AI extensions now, and about ten thousand nine hundred of them are rubbish.

I know because i've installed far too many of them. There was a period after i got made redundant where i went through a phase of trying every AI tool i could find, partly out of genuine curiosity and partly because i had too much free time and a browser with no corporate IT restrictions. Most extensions got uninstalled within a day. Some lasted a week. A handful became permanent residents in my toolbar.

This is a guide to that handful. The ones i actually use. The ones that make a noticeable difference to how i work, rather than adding a flashy icon that does something i could already do in three clicks.

What makes a good AI extension

Before we get into specifics, here's my filter. A Chrome extension earns its place if it:

1. Does something faster than the alternative. If i can achieve the same result by opening ChatGPT in a new tab, the extension needs to be meaningfully quicker.
2. Works reliably. Extensions that break every other week or conflict with websites are out immediately.
3. Respects your data. Some extensions send everything you browse to their servers. Read the privacy policy. Or at least skim it.
4. Doesn't slow your browser to a crawl. Chrome already uses enough RAM to heat a small flat. Extensions that make it worse aren't worth it.

With that said, here's what's actually worth installing.

For summarising content

Smmry / TLDR This

The use case is simple: you land on a long article, report, or documentation page and you need the key points without reading 4,000 words. These extensions add a button that summarises the page content.

I use TLDR This most days. It's particularly good for news articles, research papers, and those corporate blog posts that take 2,000 words to make a point that could be made in two sentences. The free tier gives you a reasonable number of summaries per day.

When it's useful: Research, catching up on industry news, processing information quickly.

When it's not: Anything where nuance matters. Summarisation strips context. Don't summarise a contract or a policy document and assume you've read it.

YouTube Summary with ChatGPT

If you watch educational or professional YouTube videos, this extension generates a summary and key takeaways. It pulls the transcript and feeds it through AI. Extremely useful for those 45-minute conference talks where the actual content is about 8 minutes.

When it's useful: Professional development, research, any time someone sends you a "you should watch this" link.

For writing assistance

Grammarly

Yes, Grammarly has been around forever. Yes, it's not strictly an "AI tool" in the trendy sense. But the AI features they've added recently are genuinely good. Tone detection, full paragraph rewrites, clarity suggestions that go beyond basic grammar.

The free version catches embarrassing mistakes. The premium version helps you write better. It works in email, documents, web forms — basically anywhere you type in a browser.

Best for: Non-native English speakers and anyone who fires off emails too quickly and regrets it.

Compose AI

This one autocompletes your sentences as you type, across any text field in Chrome. Think of it as predictive text for your desktop browser. It learns your writing style over time, which means the suggestions get better the longer you use it.

It's particularly good for email. Start typing a reply and it suggests the rest of the sentence. Tab to accept, keep typing. It genuinely speeds things up once you get used to the rhythm.

Best for: People who write a lot of emails and messages throughout the day.

For email

Mailbutler or Boomerang AI

Both of these add AI capabilities to your email workflow directly in the browser. Smart reply suggestions, email tracking, send-later scheduling, and follow-up reminders.

Mailbutler integrates with Gmail and Outlook. It suggests replies based on the email content and lets you adjust the tone. The "smart respond" feature generates a full draft reply that you can edit and send.

Boomerang's AI features include Respondable, which scores your email before you send it and predicts the likelihood of getting a response. Sounds gimmicky, but it actually makes you reconsider emails that are too long, too vague, or too demanding.

Best for: Anyone who spends significant time on email (which is most office workers).

For research

Perplexity

The Perplexity browser extension is one of the most useful things i've installed. Highlight text on any webpage, right-click, and get an AI-powered answer with sources. It turns your browser into a research assistant.

I use it constantly. Reading an article and encounter an unfamiliar term? Highlight, right-click, instant explanation with context. Researching a topic and want to go deeper? The extension opens a Perplexity search that actually cites its sources, unlike certain other AI tools that confidently make things up.

Best for: Researchers, students, writers, anyone who regularly needs to look things up.

Scholarcy

If you deal with academic papers or long research documents, Scholarcy breaks them down into key findings, methods, limitations, and references. It creates "flashcards" from papers that are surprisingly useful for quickly assessing whether a paper is relevant to what you're working on.

Best for: Academics, researchers, and anyone who needs to process a lot of published research.

For productivity

Monica AI

Monica sits in your sidebar and provides AI assistance across any webpage. Summarise the current page, translate text, generate content, explain code, chat about whatever you're looking at. It's like having ChatGPT contextually aware of what you're browsing.

The free tier is generous enough for daily use. The premium version adds GPT-4 level responses and more features.

Best for: People who want AI assistance without constantly switching tabs.

Merlin

Similar concept to Monica but with a slightly different approach. Merlin integrates AI into Google search results, provides summaries of websites, and offers writing assistance. It works across Gmail, LinkedIn, and Twitter as well.

The standout feature is the Google search integration — it shows an AI-generated summary alongside your normal search results, which saves you clicking through to multiple pages to find a straightforward answer.

Best for: Heavy Google users who want AI-enhanced search results.

For meetings and communication

Otter.ai Extension

If you do a lot of video meetings in the browser, Otter's extension can transcribe and summarise meetings in real time. It works with Google Meet, and the transcripts are searchable afterwards. No more "can someone share the notes from that call?"

Best for: People in lots of meetings who need to reference what was discussed. (Though if you're in that many meetings, the real solution might be fewer meetings.)

Tactiq

Similar to Otter but focused specifically on live meeting transcription. It captures captions from Google Meet, Zoom, and Microsoft Teams meetings in the browser and creates summaries with action items.

Best for: The person who always gets asked to take minutes.

What to avoid

A few categories of AI extensions that i'd steer clear of:

AI detectors. Extensions that claim to tell you whether text was written by AI. They don't work reliably. They produce false positives constantly. They'll tell you the Declaration of Independence was written by ChatGPT. Save your browser space.

Screenshot-and-solve extensions. These take a screenshot of whatever you're looking at and try to "solve" it with AI. Sounds clever, works poorly. The context is usually insufficient for useful results.

Extensions that require excessive permissions. If an AI extension wants access to your browsing history, all your data on all websites, and your firstborn child, think carefully about whether the convenience is worth it. Many free extensions monetise your data. The product is you.

Anything with "10x" in the description. This is a personal rule but it hasn't let me down yet.

How to actually adopt these

Don't install all of them at once. That's a recipe for browser chaos and extension conflicts.

Pick one or two based on your biggest daily friction points. If you spend ages on email, start with a writing assistant and an email tool. If you do lots of research, start with Perplexity. If you process lots of content, start with a summariser.

Use them for a week. If you find yourself actually reaching for the extension and it's saving you time, keep it. If you forget it's there, uninstall it.

The best AI extension is the one you actually use. A toolbar full of unused icons is just digital clutter.

A word about your IT department

If you work for a company with an IT department, some of these extensions might be blocked or require approval. This isn't IT being difficult — it's IT being sensible. Extensions can be security risks, and anything that processes your work data through a third-party server is legitimately worth scrutinising.

Before installing anything at work, check your company's policy on browser extensions. If there's no policy, ask. It takes two minutes and saves you the awkward conversation with IT security later.

If you're working for yourself or your company doesn't restrict extensions, you have more freedom. Use it wisely. Read privacy policies. Be thoughtful about what data you're sharing.

The extensions i've listed here are from established companies with clear privacy practices. But "established" doesn't mean "immune to data breaches," so keep that in mind. Don't paste confidential client information into an AI extension without understanding where that data goes.

Right. Go install Perplexity at minimum. You'll use it within the hour.