Best AI Chrome Extensions: Real Usage Numbers Report

TL;DR: The best AI Chrome extension overall is Grammarly, which holds 51.9% of every install on this list at a quality score of 95/100. But “overall” is rarely the question, so there is one pick per job directly below. This ranks 132 AI Chrome extensions on real Chrome Web Store install, rating and review data, not on opinion.

Last updated: 11 September 2026. Data pulled: 11 September 2026, directly from each extension’s Chrome Web Store listing. Extensions ranked: 132. Combined installs: 77,134,981. Reviews behind those ratings: 364,921.

Most “best AI Chrome extensions” roundups are a list of the tools the writer happens to use, in an order nobody can check. This one ranks every extension on three public numbers the Web Store publishes for all of them: installs, rating, and how many people actually left that rating. The formula is at the bottom and it runs identically on all 132 entries.

I have spent 15 years in software and SEO and tested more than 500 AI tools. The thing that keeps surprising me about this category is how little the store’s own quality signals tell you, which is most of what this report is about.

Best AI Chrome extensions by job: the short answer

Nobody installs “the highest quality score”. They install a meeting notetaker, or a grammar checker, or something to summarize a long doc before a meeting. So here is one winner per job before any of the analysis.

The job	Pick	Installs	Rating	Reviews	Store upgrade	Quality score
AI chatbot sidebars (multi-model)	Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok	5,000,000	4.9	114,300	No	90/100
AI writing and grammar assistants	Grammarly: AI Writing Assistant and Grammar Checker App	40,000,000	4.5	43,100	No	95/100
AI meeting notetakers and transcription	Tactiq: AI note taker for Google Meet, Zoom and MS Teams	1,000,000	4.8	4,200	Yes	77/100
AI summarizers for YouTube, web, and PDF	NoteGPT: YouTube Summary, Chat with AI Assistant, ChatGPT DeepSeek Claude	400,000	4.9	8,300	No	75/100
AI homework and study helpers	Brisk Teaching - AI that Works Where Teachers Work	1,000,000	4.7	732	No	73/100
AI web agents and automation	Manus AI Browser Operator	400,000	4.3	65	No	62/100
AI content detectors	GPTZero: AI Detection & Writing Replay	400,000	4.7	726	No	69/100

How to read that table, including its weak spot. The job groups and the shortlist inside each are editorial, because the Web Store’s own categories are far too coarse to use: “Tools” alone holds 60 of the 132 extensions. What is not editorial is the winner. Inside each shortlist the highest quality score takes the row, so these move when the data moves rather than when I change my mind.

The Store upgrade column is Chrome’s in-app-purchase flag, and it is narrower than it looks. It tells you whether the extension sells something through the Web Store, not whether the tool is free.

Grammarly and QuillBot both read No there and both sell subscriptions on their own websites. There is a whole section on that below, because “free” is the single most common thing people ask about this category and the honest answer is more annoying than a yes or no.

Below the winners, each job group is broken out in full with its runners-up.

Best AI chatbot sidebars (multi-model)

One sidebar, several AI models. These let you switch between GPT, Claude, Gemini, and DeepSeek without leaving the page you are on.

Extension	Rating	Installs	Paid tier	Quality score
Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok	4.9/5 (114,300)	5,000,000	No	90/100
Monica: All-In-One AI Assist & Smartest AI Agent	4.9/5 (32,300)	3,000,000	Yes	86/100
Merlin AI	4.8/5 (8,800)	900,000	Yes	78/100
MaxAI: Ask AI anything as you browse (GPT, Gemini, Claude, Grok, etc.)	4.7/5 (14,500)	700,000	No	77/100
HARPA AI: Web Automation with ChatGPT, Claude, Gemini, Grok	4.7/5 (3,200)	400,000	Yes	72/100

Best AI writing and grammar assistants

The highest-adoption, highest-rated tools for grammar checking, paraphrasing, and tone, the category with the most real-world usage data of any on this list.

Extension	Rating	Installs	Paid tier	Quality score
Grammarly: AI Writing Assistant and Grammar Checker App	4.5/5 (43,100)	40,000,000	No	95/100
Quillbot: AI Writing Assistant to Grammar Check, Paraphrase & Translate	4.7/5 (5,900)	6,000,000	No	84/100
AI Grammar Checker & Paraphraser - LanguageTool	4.7/5 (12,600)	2,000,000	No	81/100
Wordtune: AI Paraphrasing and Grammar Tool	4.6/5 (2,400)	1,000,000	No	74/100
BeLikeNative - AI Writing Assistant | Paraphrase, Rewrite & Translate Text	4.7/5 (382)	30,000	No	56/100

Best AI meeting notetakers and transcription

Extensions that sit in Google Meet, Zoom, or MS Teams and turn the call into searchable notes automatically.

Extension	Rating	Installs	Paid tier	Quality score
Tactiq: AI note taker for Google Meet, Zoom and MS Teams	4.8/5 (4,200)	1,000,000	Yes	77/100
Scribe: AI Documentation, SOPs & Process Intelligence	4.8/5 (835)	1,000,000	No	73/100
Otter.ai: Record & Transcribe Meetings - Google Meet & Web Audio	4.1/5 (139)	300,000	No	60/100
Bluedot: AI notetaker & Meeting Recorder	4.7/5 (199)	80,000	No	59/100
AI Note taker for Google Meet, by Noty.ai	4.7/5 (138)	10,000	No	50/100

Best AI summarizers for YouTube, web, and PDF

Feed these a video, article, or PDF and get the key points back in seconds instead of reading or watching the whole thing.

Extension	Rating	Installs	Paid tier	Quality score
NoteGPT: YouTube Summary, Chat with AI Assistant, ChatGPT DeepSeek Claude	4.9/5 (8,300)	400,000	No	75/100
Web Highlights: PDF & Web Highlighter + Notes & AI Summary	4.8/5 (5,000)	300,000	Yes	72/100
Liner: ChatGPT AI Copilot for Web&YouTube&PDF	4.4/5 (6,000)	300,000	No	70/100
AI Summary for YouTube	3.2/5 (111)	100,000	Yes	49/100
Gist AI:Web,YouTube,PDF Summarizer w/ ChatGPT	4.1/5 (136)	10,000	No	46/100

Best AI homework and study helpers

Built for students, with step-by-step problem solving rather than just answers, so check your school’s AI-use policy before relying on one.

Extension	Rating	Installs	Paid tier	Quality score
Brisk Teaching - AI that Works Where Teachers Work	4.7/5 (732)	1,000,000	No	73/100
AnswerAI - Homework AI Tutor & Study Helper	4.9/5 (12,400)	100,000	No	70/100
QuestionAI Homework Powered AI Assistant	4.8/5 (2,100)	100,000	No	66/100
SolvelyAI - AI Homework Tutor & Study Helper	4.6/5 (202)	100,000	No	60/100
Math AI	4.8/5 (999)	10,000	Yes	54/100

Best AI web agents and automation

These go further than chat: they click, fill forms, and complete multi-step tasks in the browser on your behalf.

Extension	Rating	Installs	Paid tier	Quality score
Manus AI Browser Operator	4.3/5 (65)	400,000	No	62/100
Thunderbit: AI Web Scraper & Web Automation Agent	4.2/5 (208)	100,000	No	57/100
Nanobrowser: AI Web Agent & Automation	3.8/5 (61)	50,000	No	49/100
Retriever: AI Web Agent	4.0/5 (58)	10,000	Yes	44/100

Best AI content detectors

Flag AI-generated text before you submit or publish it. None of these are perfect, so treat a “likely AI” verdict as a prompt to review, not a courtroom-grade fact.

Extension	Rating	Installs	Paid tier	Quality score
GPTZero: AI Detection & Writing Replay	4.7/5 (726)	400,000	No	69/100
AI Content Detector - Copyleaks	4.1/5 (709)	200,000	No	62/100
Hive AI Detector	4.6/5 (414)	60,000	No	59/100
AI Detector for text and images - Winston AI	4.8/5 (19)	10,000	Yes	47/100
AI Detector - BitMind	3.8/5 (53)	30,000	Yes	46/100

Best free, highest-rated picks

Free to install, rated 4.7 or higher, and backed by a real review base, regardless of category.

Extension	Rating	Installs	Paid tier	Quality score
Quillbot: AI Writing Assistant to Grammar Check, Paraphrase & Translate	4.7/5 (5,900)	6,000,000	No	84/100
DeepL: translate and write with AI	4.7/5 (12,600)	4,000,000	No	84/100
eJOY AI Dictionary	4.8/5 (5,000)	700,000	No	76/100
Scribe: AI Documentation, SOPs & Process Intelligence	4.8/5 (835)	1,000,000	No	73/100
AI Blaze: Instantly Use AI in Any Webpage	5.0/5 (252)	90,000	No	63/100

The numbers worth quoting

• 132 AI Chrome extensions tracked as of 11 September 2026, with 77,134,981 combined installs from 109 publishers.
• Grammarly alone holds 51.9% of all installs (40,000,000 of 77,134,981). The top ten hold 83.0%.
• Communication is 65.6% of installs from only 12 extensions. Tools has the most extensions (60) and just 20.9%.
• 86 of 132 extensions (65%) are rated 4.5 or higher, and 86% sit at 4.0 or above. The mean is 4.43 out of 5.
• 83 of 132 (63%) carry Chrome’s “Featured” badge, which makes it close to useless as a shortlist filter. Not one AI add-on on Firefox holds Mozilla’s equivalent.
• 44 of 132 (33%) sell an in-app upgrade, so 67% carry no purchase inside the store itself.
• Chrome rounds install counts, so across 58 days only 38 of 132 extensions changed at all, while review counts moved on 86.
• The fastest install growth belongs to Hide Google AI Overviews, up 300% from 100,000 to 400,000. Its purpose is hiding AI.
• Seventeen extensions have not shipped an update in over 12 months, the oldest since February 2023, while 70 shipped one in the last 30 days.
• 364,921 total reviews across the list, with 31 extensions above 1,000 reviews and Eight below 10.

Every figure is reproducible from the tables further down. The method and citation line is at the bottom.

Do you still need an AI extension now that Chrome has Gemini built in?

For some of these jobs, no. Chrome now ships Gemini in the browser itself, and it exposes a set of built-in AI APIs that run on-device, covering prompting, writing, rewriting, translation, language detection, summarization and proofreading. If all you wanted was “summarize this page” or “fix this paragraph”, a chunk of this category is now duplicated by software you already have.

The data says something more interesting than that, though. The single fastest-growing extension in this entire AI directory exists to remove Google’s AI. Hide Google AI Overviews went from 100,000 to 400,000 installs over the 58 days to 11 September 2026, a 300% gain, and three of the tracked anti-AI extensions gained installs in the same window. Google is pushing AI into Chrome and into search results at the same time as its users are installing tools to take it back out.

Both things are true at once, and the second one is not in any other roundup because most of them exclude anti-AI tools on principle. This report keeps them deliberately.

So the honest split, based on what is actually in this dataset:

• Built-in AI probably covers you for one-off page summaries, quick rewrites, proofreading and translation. Those are exactly the tasks Chrome’s own APIs target.
• It does not cover the jobs most of this list does. Gemini in Chrome is Gemini. A whole job group here exists purely to switch between GPT, Claude, Gemini, DeepSeek and Perplexity in one sidebar, and its leader Sider carries 114,300 reviews, the largest review base in the directory. Nor does built-in AI sit inside Google Meet, Zoom or Teams taking meeting notes, detect AI-written text, walk a student through a maths problem step by step, or drive a multi-step task across a site on your behalf.
• And it does not do the negative case at all. Nothing built into Chrome will hide Chrome’s own AI.

The practical read: check whether your use case is “summarize or rewrite what is on screen” before you install anything. If it is, try the browser first. If it is anything in the picks table above, you still need an extension.

The 10 best AI Chrome extensions right now

Every extension in this report is explicitly AI-branded by its own publisher: the word AI, or a named model like GPT, Claude, or Gemini, appears in its store title or core pitch. This is a purpose-built AI dataset, not a general extension directory filtered down.

Rank	AI Chrome extension	Category	Rating	Installs	Quality score
1	Grammarly: AI Writing Assistant and Grammar Checker App	Communication	4.5/5 (43,100)	40,000,000	95/100
2	Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok	Tools	4.9/5 (114,300)	5,000,000	90/100
3	Monica: All-In-One AI Assist & Smartest AI Agent	Tools	4.9/5 (32,300)	3,000,000	86/100
4	Quillbot: AI Writing Assistant to Grammar Check, Paraphrase & Translate	Communication	4.7/5 (5,900)	6,000,000	84/100
5	DeepL: translate and write with AI	Communication	4.7/5 (12,600)	4,000,000	84/100
6	AI Grammar Checker & Paraphraser - LanguageTool	Workflow & Planning	4.7/5 (12,600)	2,000,000	81/100
7	Chat with all AI models (Gemini, Claude, DeepSeek…) & AI Agents | AITOPIA	Tools	4.9/5 (28,300)	1,000,000	81/100
8	Merlin AI	Tools	4.8/5 (8,800)	900,000	78/100
9	Tactiq: AI note taker for Google Meet, Zoom and MS Teams	Workflow & Planning	4.8/5 (4,200)	1,000,000	77/100
10	MaxAI: Ask AI anything as you browse (GPT, Gemini, Claude, Grok, etc.)	Tools	4.7/5 (14,500)	700,000	77/100

Three things stand out.

First, the drop-off is brutal but not as steep as the install numbers suggest. Rank one scores 95/100, rank five 84/100, rank ten 77/100. Because adoption is log-scaled, a well-reviewed extension with a fraction of the installs can still place near the top, which is exactly what Sider does with 114,300 reviews at 4.9/5.

Second, the top of this list is dominated by multi-model sidebars and writing tools. Nothing in the top ten is a niche utility. On Chrome the winners are general-purpose.

Third, review counts here are on a completely different scale from Firefox. Sider alone has 114,300 reviews, which is more than every AI Firefox add-on combined.

Here is what I would say about the twelve highest-ranked extensions I have used enough to have an opinion on. The full directory carries 27 of these notes.

Grammarly (rank 1) The category’s install-base leader by a wide margin (35M users) - the safe default pick if you only install one AI writing extension.
Sider (rank 2) Highest-rated of the multi-model sidebars at real scale (4.9 from 5M users) - the model-switching workflow is the whole pitch.
Monica (rank 3) One of the broadest feature sets in the sidebar category (chat, writing, image, search) at 4.9 from 3M users.
Quillbot (rank 4) Leans harder into paraphrasing than Grammarly does, with translation built in - worth the switch if rewording, not just correcting, is the main job.
DeepL (rank 5) Translation-first, not a chat wrapper - the pick if translation accuracy matters more than general-purpose AI chat.
AI Grammar Checker & Paraphraser (rank 6) Open-source-rooted grammar engine, a genuine third option next to Grammarly and QuillBot rather than a repackaging of either.
Merlin AI (rank 8) One of the earliest multi-model sidebar extensions to reach broad adoption; still holds a 4.8 rating at 900K users.
Tactiq (rank 9) The most-adopted meeting notetaker in this dataset (1M users, 4.8) - covers all three major call platforms rather than just one.
MaxAI (rank 10) Similar positioning to Sider and Monica - worth comparing rating and feature depth against those two before choosing.
eJOY AI Dictionary (rank 11) Purpose-built for language learners rather than general productivity - pairs AI definitions with spaced-repetition review.
NoteGPT (rank 12) The highest-rated YouTube/PDF summarizer in this dataset (4.9 from 400K users).
Wordtune (rank 13) Narrower than Grammarly by design - rewriting and tone, not full grammar-suite features.

How the quality score is calculated

The Quality Score is a 0 to 100 composite of three public Chrome Web Store metrics: adoption at 45% weight, rating quality at 35%, and review-volume trust at 20%. No extension can pay to raise its score or placement, and the same formula runs on all 132 entries so the numbers compare directly.

Adoption is log-scaled deliberately. On a linear scale Grammarly at 40,000,000 installs would flatten everything below it into a single indistinguishable band, and the question this report answers is which extension to pick, not which company is biggest.

Communication owns the installs, tools owns the count

Communication extensions take 65.6% of all installs from only 12 listings, averaging 4,213,583 installs each. Tools is the opposite: 60 extensions, the largest group by count, and 20.9% of installs.

Category	Extensions	Combined installs	Share of installs	Biggest extension
Tools	60	16,120,981	20.9%	Sider (5M)
Workflow & Planning	33	5,789,000	7.5%	AI Grammar Checker & Paraphra… (2M)
Education	13	2,820,000	3.7%	Brisk Teaching (1M)
Communication	12	50,563,000	65.6%	Grammarly (40M)
Social Networking	6	225,000	0.3%	Seamless.AI (100k)
Functionality & UI	2	1,400,000	1.8%	ChatbotsPlace (1M)
Developer Tools	2	51,000	0.1%	AI Code Finder, Alerts, Ask Q… (50k)
Accessibility	1	100,000	0.1%	Chat AI Ctrl+Enter Sender (100k)
Privacy & Security	1	40,000	0.1%	DuckDuckGo No-AI Search (40k)
Entertainment	1	20,000	0.0%	Free AI Art Generator (20k)
Shopping	1	6,000	0.0%	Permission Agent (6k)
All 11 categories	132	77,134,981	100%	Grammarly (40M)

That gap is the shape of the market. Writing and communication is where AI in the browser found a mass audience, because it attaches to something people already do all day in Gmail, Docs and LinkedIn. Everything else is a long tail of smaller, more specific tools.

Installs are concentrated to an extreme degree

Grammarly holds 51.9% of all installs on its own, the top three hold 66.1%, and the top ten hold 83.0%. The remaining 122 extensions share 17.0% between them.

The median extension in this directory has 30,000 installs. Only twelve clear a million, and 35 sit under ten thousand. So when a roundup calls an AI extension “popular”, check the number: on this list, 50,000 installs puts you in the upper half but nowhere near the top.

The useful read for a buyer is that below the top ten you are choosing between small, often single-developer projects. 109 distinct publishers cover 132 extensions, so there is barely any consolidation. That is not a reason to avoid them, but it is a reason to check the update date and review count first.

Are there free AI Chrome extensions?

Every extension in this report installs at no cost. That is not the same question, and the gap between the two is where people get caught out.

The measurable part: 44 of 132 (33%) sell an in-app purchase through the Web Store, typically message caps, word limits, or premium models behind a subscription. The other 88 (67%) declare no in-app purchase.

Do not read that second number as “free”. Chrome’s in-app-purchase flag only covers money changing hands inside the store. A publisher who sells a plan on their own website declares nothing, so Grammarly and QuillBot both sit in the no-in-app-purchase group while running some of the best-known freemium subscriptions in the category. The flag is a useful signal and a bad verdict.

These are the highest-scoring extensions with no in-app purchase declared, which is the closest this data gets to a free shortlist:

AI Chrome extension	Category	Installs	Rating	Reviews	Quality score
Grammarly: AI Writing Assistant and Grammar Checker App	Communication	40,000,000	4.5	43,100	95/100
Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok	Tools	5,000,000	4.9	114,300	90/100
Quillbot: AI Writing Assistant to Grammar Check, Paraphrase & Translate	Communication	6,000,000	4.7	5,900	84/100
DeepL: translate and write with AI	Communication	4,000,000	4.7	12,600	84/100
AI Grammar Checker & Paraphraser - LanguageTool	Workflow & Planning	2,000,000	4.7	12,600	81/100
MaxAI: Ask AI anything as you browse (GPT, Gemini, Claude, Grok, etc.)	Tools	700,000	4.7	14,500	77/100
eJOY AI Dictionary	Education	700,000	4.8	5,000	76/100
NoteGPT: YouTube Summary, Chat with AI Assistant, ChatGPT DeepSeek Claude	Tools	400,000	4.9	8,300	75/100
Wordtune: AI Paraphrasing and Grammar Tool	Tools	1,000,000	4.6	2,400	74/100
Scribe: AI Documentation, SOPs & Process Intelligence	Workflow & Planning	1,000,000	4.8	835	73/100
Brisk Teaching - AI that Works Where Teachers Work	Education	1,000,000	4.7	732	73/100
NaturalReader - AI Text to Speech	Tools	900,000	4.2	2,400	71/100

What to actually check before you build a workflow on a free tier, in order: what the daily or monthly cap is (summarization tools usually meter by document or video), whether the free tier uses a weaker model than the paid one, and whether your use case is the one thing the free plan excludes. None of that is in the Web Store listing, which is why the honest answer to “are there free AI Chrome extensions” is “yes, and read the pricing page anyway”.

The store signals that actually help you pick

Not the star rating, and not the Featured badge. Both are close to useless here, and it is worth seeing how badly.

86 of the 132 extensions (65%) are rated 4.5 or higher, 86% sit at 4.0 or above, and only two are below 3.0. A metric where almost everything scores near the ceiling cannot rank anything.

Weighting by review count pushes the average from 4.43 up to 4.78, so the heavily reviewed extensions really are rated better. But the spread is so compressed that the difference between a 4.6 and a 4.8 is noise unless you also know how many people voted.

31 extensions have more than 1,000 reviews. Eight have fewer than ten.

That is why review volume gets its own 20% of the score rather than being folded into the rating. The rating tells you how people felt. The review count tells you whether to believe them.

The Featured badge does not rescue this. 83 of 132 extensions (63%) carry Chrome’s “Featured” badge, awarded for following its technical best practices. When roughly two in three listings have it, it cannot narrow a shortlist. This is the sharpest contrast with Firefox in the whole comparison: Mozilla’s equivalent badge is so rare that no AI Firefox add-on holds one, which makes it meaningful but useless for filtering, while Chrome’s is common enough to be the reverse.

So the two columns that do the real work are review count and last-updated date, and both are in the full directory below.

The fastest growing, and the ones that look abandoned

Hide Google AI Overviews grew 300% over the 58 days to 11 September 2026, from 100,000 to 400,000 installs, the fastest in the directory.

Read install movement carefully, because Chrome rounds it. The Web Store reports installs in buckets, not exact figures, so an extension sits on the same published number for weeks and then jumps a whole step. Over this 58-day window only 38 of 132 extensions changed their published install count at all, and 94 (71%) showed exactly the same figure. Mozilla publishes exact daily active users, which is why our Firefox trend data is far finer grained than this.

Review counts are the better growth signal on Chrome. They moved on 86 of 132 extensions (65%) over the same period, more than three times as many as installs, because reviews are counted individually rather than bucketed. Sider added 900 reviews to reach 114,300, which tells you far more about current momentum than a frozen install figure does.

Extension	Reviews 2026-07-15	Reviews 2026-09-11	New reviews	Installs
Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok	113,400	114,300	+900	5,000,000
NoteGPT: YouTube Summary, Chat with AI Assistant, ChatGPT DeepSeek Claude	7,700	8,300	+600	400,000
Quillbot: AI Writing Assistant to Grammar Check, Paraphrase & Translate	5,600	5,900	+300	6,000,000
Tactiq: AI note taker for Google Meet, Zoom and MS Teams	3,900	4,200	+300	1,000,000
NanoInfluencer.ai - Audience Analytics & Find Similar Influencer	2,000	2,300	+300	10,000
Promptly - AI Prompt Enhancer & Manager for ChatGPT, Claude, Gemini	56	309	+253	70,000
Monica: All-In-One AI Assist & Smartest AI Agent	32,100	32,300	+200	3,000,000
AI Exporter: Save Gemini, ChatGPT to PDF, Word, Notion - Markdown to pdf	1,400	1,600	+200	100,000
Web Highlights: PDF & Web Highlighter + Notes & AI Summary	4,900	5,000	+100	300,000
HARPA AI: Web Automation with ChatGPT, Claude, Gemini, Grok	3,100	3,200	+100	400,000

If you take one methodological point from this report, make it that one: on the Chrome Web Store, count reviews to measure growth, not installs.

Seventeen extensions have not shipped an update in over a year

Chrome’s extension APIs, the sites these tools attach to, and the AI providers behind them all change. An AI extension untouched for a year is likely partly broken, and it still holds whatever page-access permissions you granted it.

Extension	Last updated	Installs	Rating	Paid tier
AI Magic	2023-02-21	1,000	2.0/5	No
AI Assistant	2023-04-10	1,000	3.0/5	Yes
AI Meeting Notes Taker & Screen Recorder	2023-08-23	10,000	4.6/5	Yes
AI Copilot for Sheets - by Arcwise	2024-09-14	10,000	4.5/5	No
Compose AI: AI-powered Writing Tool	2025-01-02	300,000	4.1/5	Yes
Hive AI Detector	2025-01-11	60,000	4.6/5	No
BrainyAI - Browser AI Sidekick for Chat, Search, Read and Summarize	2025-02-08	1,000	4.7/5	No
ChatSider AI Copilot : ChatGPT & Claude	2025-02-12	2,000	4.9/5	Yes
Promptimize AI: Your Personal AI Prompt Engineer - Across All AI Platforms	2025-02-19	10,000	3.9/5	Yes
Webutler.AI - AI powered web scraper	2025-02-20	2,000	4.7/5	No
AI Chat RTL Support	2025-04-08	3,000	3.9/5	No
AIKTP: All-in-One AI	2025-04-16	4,000	5.0/5	No
Distribute.ai	2025-05-01	50,000	3.6/5	No
AI-based Day Trading Insights by Pixeltable	2025-05-17	1,000	4.8/5	No
Explain AI - Explain anything in its context	2025-06-11	1,000	4.6/5	No
AI Eyes	2025-08-18	1,000	4.6/5	No
Gist AI:Web,YouTube,PDF Summarizer w/ ChatGPT	2025-08-29	10,000	4.1/5	No

For context, 70 extensions (53%) shipped an update within 30 days of this snapshot and 92 within 90, so most of the list is actively maintained. The worst case is Compose AI: 300,000 installs, rated 4.1/5, and last updated January 2025. The check takes ten seconds: open the store page, look at “Updated” under Details, and if it is more than a year old, read the recent reviews before you install.

The full directory: All 132 AI Chrome extensions ranked

Every extension in this build, ranked by Quality Score, with the raw inputs so you can check the arithmetic. Installs are the store’s rounded figure, reviews is the count behind the rating, and the last two columns are the ones no version of this directory could show before.

#	AI Chrome extension	Publisher	Category	Rating	Reviews	Installs	Quality score	Last updated	Featured	Paid tier
1	Grammarly: AI Writing Assistant and Grammar Checker App	Grammarly	Communication	4.5	43,100	40,000,000	95	2026-09-09	Yes	No
2	Sider: Chat with all AI: GPT-5, Claude, DeepSeek, Gemini, Grok	Vidline Inc.	Tools	4.9	114,300	5,000,000	90	2026-09-09	Yes	No
3	Monica: All-In-One AI Assist & Smartest AI Agent	BUTTERFLY EFFECT PTE. LTD.	Tools	4.9	32,300	3,000,000	86	2026-08-06	Yes	Yes
4	Quillbot: AI Writing Assistant to Grammar Check, Paraphrase & Translate	QuillBot (Course Hero), LLC	Communication	4.7	5,900	6,000,000	84	2026-09-10	Yes	No
5	DeepL: translate and write with AI	DeepL	Communication	4.7	12,600	4,000,000	84	2026-08-11	Yes	No
6	AI Grammar Checker & Paraphraser - LanguageTool	LanguageTooler GmbH	Workflow & Planning	4.7	12,600	2,000,000	81	2026-08-12	Yes	No
7	Chat with all AI models (Gemini, Claude, DeepSeek…) & AI Agents | AITOPIA	n/a	Tools	4.9	28,300	1,000,000	81	2026-07-18	Yes	Yes
8	Merlin AI	Foyer Tech	Tools	4.8	8,800	900,000	78	2026-08-18	Yes	Yes
9	Tactiq: AI note taker for Google Meet, Zoom and MS Teams	Tactiq HQ Pty Ltd	Workflow & Planning	4.8	4,200	1,000,000	77	2026-09-04	Yes	Yes
10	MaxAI: Ask AI anything as you browse (GPT, Gemini, Claude, Grok, etc.)	maxai.co	Tools	4.7	14,500	700,000	77	2026-08-24	Yes	No
11	eJOY AI Dictionary	ejoy-english.com	Education	4.8	5,000	700,000	76	2026-08-17	Yes	No
12	NoteGPT: YouTube Summary, Chat with AI Assistant, ChatGPT DeepSeek Claude	https://notegpt.io/	Tools	4.9	8,300	400,000	75	2026-08-25	Yes	No
13	Wordtune: AI Paraphrasing and Grammar Tool	AI21 LABS, INC.	Tools	4.6	2,400	1,000,000	74	2026-04-19	Yes	No
14	Scribe: AI Documentation, SOPs & Process Intelligence	Colony Labs, Inc.	Workflow & Planning	4.8	835	1,000,000	73	2026-09-09	Yes	No
15	Brisk Teaching - AI that Works Where Teachers Work	https://www.briskteaching.com/	Education	4.7	732	1,000,000	73	2026-09-09	Yes	No
16	HARPA AI: Web Automation with ChatGPT, Claude, Gemini, Grok	HARPA AI TECHNOLOGIES OY	Tools	4.7	3,200	400,000	72	2026-06-29	Yes	Yes
17	Web Highlights: PDF & Web Highlighter + Notes & AI Summary	web-highlights.com	Workflow & Planning	4.8	5,000	300,000	72	2026-09-04	Yes	Yes
18	ChatbotsPlace: All-in-One AI Sidebar (ChatGPT, Claude & Gemini)	chatbotsplace.com	Functionality & UI	4.8	178	1,000,000	71	2026-09-11	Yes	Yes
19	NaturalReader - AI Text to Speech	NaturalSoft Limited	Tools	4.2	2,400	900,000	71	2026-09-09	Yes	No
20	Jetwriter AI: Reply Emails, Ask Page, Summarize, Fix Grammar, and More	jetwriter.ai	Tools	4.6	1,400	500,000	70	2026-08-24	Yes	No
21	Trancy - AI Translator & Dual Subtitles	trancy.org	Education	4.7	2,800	300,000	70	2026-09-08	Yes	No
22	Liner: ChatGPT AI Copilot for Web&YouTube&PDF	LINER, Inc.	Workflow & Planning	4.4	6,000	300,000	70	2026-09-09	Yes	No
23	AnswerAI - Homework AI Tutor & Study Helper	ANSWER AI LAB INC	Education	4.9	12,400	100,000	70	2026-06-19	Yes	No
24	GPTZero: AI Detection & Writing Replay	15020131 Canada Inc.	Education	4.7	726	400,000	69	2026-09-03	Yes	No
25	AI Sidebar with Deepseek, ChatGPT, Claude and more.	n/a	Tools	4.6	2,200	200,000	67	2026-09-10	No	No
26	Hide Google AI Overviews	n/a	Functionality & UI	4.1	1,100	400,000	66	2026-04-27	No	No
27	Page Assist - A Web UI for Local AI Models	n/a	Tools	4.8	244	300,000	66	2026-09-06	Yes	No
28	DeepSider™:AI Sidebar | DeepSeek, Gemini, Claude, GPT	deepsider.ai	Tools	4.8	650	200,000	66	2026-08-26	Yes	No
29	QuestionAI Homework Powered AI Assistant	https://www.questionai.com/	Education	4.8	2,100	100,000	66	2026-04-11	Yes	No
30	WAPlus CRM - Best AI-Powered Messaging CRM	https://waplus.io/	Social Networking	4.9	4,000	70,000	66	2026-09-08	No	No
31	AI Exporter: Save Gemini, ChatGPT to PDF, Word, Notion - Markdown to pdf	saveai.net	Workflow & Planning	4.8	1,600	100,000	65	2026-09-08	Yes	No
32	AI Blaze: Instantly Use AI in Any Webpage	Blaze Today Inc	Tools	5.0	252	90,000	63	2026-03-29	Yes	No
33	Manus AI Browser Operator	manus.im	Tools	4.3	65	400,000	62	2026-08-28	Yes	No
34	AI Content Detector - Copyleaks	copyleaks.com	Tools	4.1	709	200,000	62	2026-03-10	Yes	No
35	Compose AI: AI-powered Writing Tool	compose.ai	Communication	4.1	243	300,000	61	2025-01-02	Yes	Yes
36	AI Chat Exporter: Gemini to PDF, MD and more	ShengChen Inc.	Workflow & Planning	4.8	707	50,000	61	2026-08-26	No	Yes
37	FrogHire.ai - AI Resume & Job Search, Autofill, H1B Checker	froghire.ai	Tools	4.8	1,100	40,000	61	2026-09-07	Yes	Yes
38	Otter.ai: Record & Transcribe Meetings - Google Meet & Web Audio	otter.ai	Workflow & Planning	4.1	139	300,000	60	2026-08-07	Yes	No
39	SolvelyAI - AI Homework Tutor & Study Helper	Aignite Inc	Education	4.6	202	100,000	60	2026-09-07	Yes	No
40	Ddict: AI Translation & Writing Assistant	ddict.me	Communication	4.2	742	100,000	60	2025-11-27	Yes	Yes
41	MetaPrompt - AI Prompt Engineer & Optimizer for ChatGPT & Claude	n/a	Tools	4.7	107	100,000	60	2026-02-09	Yes	Yes
42	Voila - AI Assistant, Copilot and AI Writer	Initial condition s.r.o.	Communication	4.7	219	80,000	60	2026-09-04	Yes	No
43	Promptly - AI Prompt Enhancer & Manager for ChatGPT, Claude, Gemini	https://promptly.fyi/	Tools	4.8	309	70,000	60	2026-07-31	Yes	No
44	Seamless.AI	Seamless Contacts Inc.	Social Networking	4.5	197	100,000	59	2026-09-08	Yes	No
45	Bluedot: AI notetaker & Meeting Recorder	bluedothq.com	Workflow & Planning	4.7	199	80,000	59	2026-09-09	Yes	No
46	Hive AI Detector	thehive.ai	Workflow & Planning	4.6	414	60,000	59	2025-01-11	Yes	No
47	NotebookLM AI Sidebar	aisidebar.app	Tools	4.7	108	70,000	58	2026-08-14	Yes	No
48	Hiver in Gmail: AI-powered customer service platform	GREXIT, INC.	Workflow & Planning	4.6	304	50,000	58	2026-09-11	No	No
49	WAScheduler - WhatsApp Message Scheduler	https://wa-scheduler.com/	Social Networking	4.8	1,700	20,000	58	2026-08-07	No	No
50	Free AI Art Generator - AIAnime	https://aianime.io/	Entertainment	4.8	1,700	20,000	58	2025-12-04	No	No
51	NanoInfluencer.ai - Audience Analytics & Find Similar Influencer	nanoinfluencer.ai	Tools	5.0	2,300	10,000	58	2026-09-08	Yes	Yes
52	Thunderbit: AI Web Scraper & Web Automation Agent	Thunderbit, Inc.	Workflow & Planning	4.2	208	100,000	57	2026-08-10	Yes	No
53	TradingView Remix: AI Chart Copilot	tvremix.xyz	Tools	4.3	138	100,000	57	2026-09-04	No	No
54	WhatsApp AI Agents With CRM Integration | Eazybe	eazybe.com	Social Networking	4.5	1,100	30,000	57	2026-09-09	Yes	No
55	Chat AI Ctrl+Enter Sender	n/a	Accessibility	4.1	153	100,000	56	2026-08-25	No	No
56	AI Code Finder, Alerts, Ask Questions about Papers: CatalyzeX	catalyzex.com	Developer Tools	4.8	68	50,000	56	2026-05-07	Yes	No
57	YouMind: AI Web Clipper, Youtube Notes & Annotate | Claude Gemini Assistant	MIND MOTOR PTE. LTD.	Tools	4.9	76	40,000	56	2026-09-01	No	Yes
58	Leeco AI - Auto-Apply Jobs on LinkedIn & Upskill for Job Interviews	leeco.ai	Education	4.5	687	30,000	56	2026-02-03	No	Yes
59	TinaMind - The most powerful AI Assistant!	tinamind.com	Workflow & Planning	4.5	693	30,000	56	2026-04-29	Yes	No
60	BeLikeNative - AI Writing Assistant | Paraphrase, Rewrite & Translate Text	belikenative.com	Tools	4.7	382	30,000	56	2026-09-01	No	No
61	Prompt Optimizer - SecondBrain	secondbrain.is	Tools	3.9	189	100,000	55	2026-08-14	No	No
62	AI Chat to Word, PDF & Google Docs - for Gemini	Thinksolv technologies (OPC) private limited	Tools	4.6	261	30,000	55	2026-07-21	Yes	Yes
63	Math AI	mathai.online	Education	4.8	999	10,000	54	2026-02-01	Yes	Yes
64	AIKTP: All-in-One AI	aiktp.com	Tools	5.0	3,400	4,000	54	2025-04-16	No	No
65	Video Notebook - Visual AI Tutor for Video Learning	videonotebook.com	Education	3.8	257	60,000	53	2026-08-14	Yes	Yes
66	DuckDuckGo No-AI Search	https://duckduckgo.com/	Privacy & Security	4.5	33	40,000	52	2026-08-19	No	No
67	AI Amazon Product Research - AMZScout PRO AI Extension	https://amzscout.net/	Workflow & Planning	4.8	70	20,000	52	2026-08-27	No	No
68	AI Content Shield - Hide AI Overviews & AI Mode | AI Content Blocker	https://www.aicontentshield.app/	Workflow & Planning	4.4	285	20,000	52	2026-08-21	Yes	Yes
69	SideAI: AI Sidebar For ChatGPT - Free Access	sideai.app	Tools	4.7	450	10,000	52	2026-09-08	Yes	Yes
70	Distribute.ai	oasis.ai	Tools	3.6	338	50,000	51	2025-05-01	No	No
71	Trupeer - AI Screen Recorder for Video Documentation, SOPs & Screenshots	Trupeer Technologies Private Limited	Communication	4.8	39	20,000	51	2026-09-02	No	No
72	AI Prompt Genius	n/a	Workflow & Planning	3.3	161	100,000	50	2026-07-29	Yes	Yes
73	AI Note taker for Google Meet, by Noty.ai	noty.ai	Communication	4.7	138	10,000	50	2026-08-03	Yes	No
74	MailMaestro - Gmail AI assistant	Maestro Labs Pte. Ltd.	Communication	4.8	120	10,000	50	2026-09-09	Yes	Yes
75	AI Summary for YouTube	chatgpt4youtube.com	Workflow & Planning	3.2	111	100,000	49	2026-06-04	No	Yes
76	Blueticks: WhatsApp Scheduler, Marketing Campaigns & AI Agent	https://blueticks.co/	Workflow & Planning	3.1	405	70,000	49	2026-09-11	No	No
77	Nanobrowser: AI Web Agent & Automation	nanobrowser.ai	Tools	3.8	61	50,000	49	2025-11-23	No	No
78	Crowdly - AI Study Assistant for Moodle	crowdly.sh	Education	4.4	224	10,000	49	2026-05-11	No	Yes
79	DeepSeek AI - Floating AI Chat	n/a	Workflow & Planning	3.9	88	30,000	48	2026-07-22	No	No
80	Ask Gene - AI Assistant	https://www.askgene.io/	Tools	4.6	72	10,000	48	2026-09-02	No	No
81	AI Content Visibility Checker, powered by Adobe Brand Visibility	n/a	Tools	4.8	30	10,000	48	2026-08-18	No	No
82	Semrush AI Writer and Editor	Semrush Inc.	Tools	4.5	11	20,000	47	2026-07-17	No	Yes
83	AI Detector for text and images - Winston AI	gowinston.ai	Tools	4.8	19	10,000	47	2026-07-23	No	Yes
84	Permission Agent - Earn by Powering AI	permission.io	Shopping	4.5	170	6,000	47	2025-12-16	No	No
85	FlyMSG: AI Writer, Autofill Text Expander & Grammar Checker	https://www.vengreso.com/	Tools	4.8	139	4,000	47	2026-09-11	Yes	No
86	AI Detector - BitMind	BitMind Labs Inc.	Tools	3.8	53	30,000	46	2026-06-24	Yes	Yes
87	AI Webcam Effects + Recorder: Google Meet, Zoom, Discord & Other Meetings	webcameffects.app	Communication	3.7	67	30,000	46	2026-08-02	Yes	Yes
88	AI Meeting Notes Taker & Screen Recorder	n/a	Workflow & Planning	4.6	28	10,000	46	2023-08-23	Yes	Yes
89	Gist AI:Web,YouTube,PDF Summarizer w/ ChatGPT	gistai.tech	Tools	4.1	136	10,000	46	2025-08-29	No	No
90	Addy AI - AI for Mortgage Pros	addy.so	Workflow & Planning	4.4	82	8,000	46	2026-08-18	No	Yes
91	Save my Chatbot - AI Conversation Exporter	hugocollin.com	Tools	4.1	85	10,000	45	2025-11-22	Yes	No
92	AI Copilot for Sheets - by Arcwise	arcwise.ai	Workflow & Planning	4.5	23	10,000	45	2024-09-14	Yes	No
93	MyLens: Your AI Visualization Partner	DataMotto	Tools	4.6	11	10,000	45	2026-08-18	No	Yes
94	CommenTron - AI Booster for LinkedIn	n/a	Social Networking	4.7	126	3,000	45	2026-07-30	Yes	Yes
95	ChatSider AI Copilot : ChatGPT & Claude	n/a	Workflow & Planning	4.9	178	2,000	45	2025-02-12	Yes	Yes
96	AI for Chrome	n/a	Tools	3.5	50	30,000	44	2025-10-21	Yes	No
97	Retriever: AI Web Agent	rtrvr.ai	Workflow & Planning	4.0	58	10,000	44	2026-09-11	Yes	Yes
98	Ventrilo AI: Your tabs, connected	Ventrilo.ai	Communication	4.4	23	9,000	44	2026-08-21	Yes	Yes
99	Side Copilot - AI Agent: Research, Organize & Automate | Claude Assistant	sidecopilot.com	Tools	4.2	55	7,000	44	2026-08-17	Yes	No
100	AI Compare - multi-AI compare for QA & GEO	n/a	Tools	4.7	72	3,000	44	2026-09-03	No	No
101	FluentAI: Dual Subtitles for Netflix & more	fluentai.pro	Education	3.8	93	9,000	43	2026-09-06	Yes	Yes
102	AiNBar - AI in Bar - Native AI Chats in Chrome Side Panel	ainbar.com	Tools	5.0	14	3,000	43	2026-08-12	No	No
103	ConnectGenie - Linkedin AI Assistant	connectgenie.ai	Social Networking	5.0	30	2,000	43	2026-09-08	No	Yes
104	JobLander - Free AI Interview Copilot & Assistant	joblander.app	Tools	4.0	31	10,000	42	2026-09-10	Yes	No
105	AI Sidebar	n/a	Tools	4.0	19	10,000	42	2026-05-14	No	No
106	Promptimize AI: Your Personal AI Prompt Engineer - Across All AI Platforms	DCL AI Solutions Inc	Workflow & Planning	3.9	35	10,000	42	2025-02-19	Yes	Yes
107	Humantic AI	Humantic AI	Workflow & Planning	4.6	36	3,000	42	2026-08-28	No	No
108	InterviewPrep AI - Meeting Copilot	alinterviewprep.com	Tools	4.6	21	3,000	41	2026-06-29	No	Yes
109	Prompt Perfect: AI Prompt Helper	promptperfect.xyz	Workflow & Planning	3.6	35	10,000	40	2026-08-28	Yes	Yes
110	Trinka AI for Chrome	trinka.ai	Workflow & Planning	3.8	25	10,000	40	2026-07-08	Yes	No
111	Obsidian AI Exporter	n/a	Tools	4.4	13	4,000	40	2026-09-08	No	No
112	Sokuji - AI Meeting Translator	n/a	Communication	4.6	8	4,000	40	2026-09-07	Yes	No
113	AI Side Panel	artistscompany.net	Tools	4.7	22	2,000	40	2026-09-09	No	No
114	AI Chat Backup: ChatGPT to Notion, Obsidian & Markdown	https://chatgpt-to-notion.linkcanvas.space/	Tools	4.3	24	3,000	39	2026-07-13	Yes	No
115	AI Short - AI Prompt Shortcuts	aishort.top	Tools	4.3	6	4,000	38	2026-08-29	Yes	No
116	Webutler.AI - AI powered web scraper	n/a	Workflow & Planning	4.7	9	2,000	38	2025-02-20	Yes	No
117	Say, Pi: Hands-Free AI Voice Chat	saypi.ai	Tools	4.8	34	1,000	38	2026-09-06	Yes	Yes
118	Explain AI - Explain anything in its context	xplnai.com	Education	4.6	67	1,000	38	2025-06-11	Yes	No
119	AI Anywhere for ChatGPT	fastaddons.com	Workflow & Planning	4.9	15	1,000	38	2026-03-02	Yes	No
120	AI Chat RTL Support	navidbehrangi.com	Tools	3.9	30	3,000	37	2025-04-08	No	No
121	AI Search Impact Analysis	n/a	Tools	4.2	13	3,000	37	2026-07-21	No	No
122	iki.ai - your knowledge hub	iki.ai	Tools	4.3	23	2,000	37	2025-10-08	Yes	No
123	BrainyAI - Browser AI Sidekick for Chat, Search, Read and Summarize	brainyai.app	Tools	4.7	31	1,000	37	2025-02-08	No	No
124	Ask Every AI	n/a	Tools	4.8	19	1,000	37	2026-02-01	Yes	No
125	AIExportHub: Bulk Export AI Chats	chatgpt2notion.com	Tools	4.6	22	1,000	36	2026-09-06	No	Yes
126	AI-based Day Trading Insights by Pixeltable	pixeltable.com	Tools	4.8	4	1,000	35	2025-05-17	No	No
127	Pointer: AI agent for Google Docs	getpointer.ai	Workflow & Planning	4.5	15	1,000	35	2026-04-09	No	Yes
128	AI Eyes	sampenny.io	Developer Tools	4.6	5	1,000	34	2025-08-18	No	No
129	AI Image Studio	n/a	Tools	4.3	11	981	33	2026-09-06	No	No
130	AI Assistant	n/a	Workflow & Planning	3.0	2	1,000	21	2023-04-10	No	Yes
131	AI Board	n/a	Tools	1.0	2	20,000	20	2026-09-07	No	No
132	AI Magic	offersmars.com	Workflow & Planning	2.0	4	1,000	15	2023-02-21	Yes	No

How to install one without regretting it

Open the extension’s Chrome Web Store link from the table above, click “Add to Chrome”, then confirm the permissions prompt. Click the puzzle-piece icon in Chrome’s toolbar and pin the extension so it stays reachable.

Read that permissions prompt before you accept it. Nearly every AI assistant asks to read and change data on the sites you visit, because it cannot summarize or rewrite a page it cannot see. That is not automatically a warning sign, but it does make AI extensions among the most privileged software you can add to a browser.

My install checklist, in order:

1. Check the update date. More than 12 months old and I skip it. That removes 17 of the 132 extensions here.
2. Check the review count, not the rating. With 86% of this list above 4.0, the rating tells you almost nothing on its own.
3. Ignore the Featured badge as a filter. 63% of these have it.
4. Read the permissions. A tool that only reformats one site should not need access to every site.
5. Assume a paid tier. 33% sell an in-app upgrade and several of the rest sell a plan off-store, so check the limits before you build a workflow on the free plan.
6. Install one at a time. Two AI sidebars competing for the same shortcut is a bad afternoon.

Do AI Chrome extensions slow Chrome down? Honest answer: this report does not measure it, and any roundup that gives you a confident number without a benchmark is guessing. What is measurable is the thing that drives it.

An AI sidebar has to run on every page you open to be there when you want it, so its cost is per-tab and constant, not per-use. That is why the sixth rule matters more than the others: three idle sidebars are three of those. Chrome’s own task manager, under the three-dot menu, shows live memory and CPU per extension, and it will answer the question for your machine far better than a generic figure could.

What this data says about AI on Chrome

Five conclusions, all falsifiable from the tables above:

1. AI on Chrome is a writing and communication market, not a general-assistant market. 65.6% of installs sit in Communication, a category with only 12 extensions in it.
2. It is a winner-take-most market. One extension at 51.9%, the top ten at 83.0%, and 122 extensions splitting the rest.
3. Store quality signals have collapsed here. 86% rated 4.0+, 63% Featured. Neither number can separate anything, so review volume and update dates do the real work.
4. Some of the fastest growth is anti-AI. The single biggest install gain in this window went to an extension that hides Google’s AI Overviews, at 300%, while Google was busy building AI into the browser itself.
5. Measure Chrome growth with reviews, not installs. 86 extensions moved on reviews against 38 on installs, because Google rounds one and counts the other.

Chrome versus Firefox, same formula

Chrome’s AI extension market is roughly 87 times the size of Firefox’s by user count, and its ratings are meaningfully more compressed. Because both reports use an identical Quality Score, the two datasets compare line by line.

Measure	AI Chrome extensions	AI Firefox add-ons
Extensions tracked	132	89
Combined users	77.1M (installs)	883.5k (daily active)
Biggest single share of users	51.9%	56.9%
Median extension	30,000	1,572
Mean star rating	4.43	4.03
Rated 4.0 or above	86%	58%
Total reviews	364.9k	7.2k
Store badge coverage	63% Featured	0% Recommended

Two differences matter if you use both browsers. Chrome has far more choice and far more review data behind each choice, so you can verify a pick properly.

Firefox has exact daily-user figures, which means you can see genuine momentum rather than inferring it from review counts. The full breakdown, with 89 add-ons and 883.5k daily users, is in our AI Firefox add-ons report.

“The Featured badge and the star rating are the two things a buyer instinctively reaches for on the Chrome Web Store, and this data says both are nearly worthless for choosing between AI extensions. Two in three carry the badge and almost nine in ten are rated above four stars. What actually separates them is how many people bothered to review, and whether the developer has shipped anything this year. Those are the two columns nobody puts in a roundup.”
Alston Antony, founder of zplatform.ai and Senior Digital Marketing Manager at Brainstorm Force

To add AI to your own site instead of your browser, start with the best AI WordPress plugins. For AI wired into your coding tools, see the ranked MCP servers directory, and for the open models behind many of these tools, the best Hugging Face models.

If a term here is unfamiliar, the AI glossary defines it. More data-backed roundups sit in best AI tools.

Questions people ask about AI Chrome extensions

What is the best AI Chrome extension?

By combined installs, rating, and review volume, Grammarly is the best AI Chrome extension with a quality score of 95/100 and 40,000,000 installs. For a multi-model AI sidebar, Sider scores 90/100 on 114,300 reviews at 4.9/5, the largest review base in the directory. For a pick matched to a specific job rather than an overall winner, use the picks table at the top of this page.

Which AI Chrome extensions are best for writing and grammar?

Writing and grammar is the largest job group in this category by installs, and Grammarly leads it at 40,000,000 installs and 95/100. QuillBot, DeepL and LanguageTool all clear two million installs in the same group, and all four declare no in-app purchase while selling a plan on their own sites. Pick on which surfaces you write in rather than on the rating, since 86% of this list is rated above 4.0.

Does Google Chrome have built-in AI?

Yes. Chrome ships Gemini in the browser and exposes on-device AI APIs to extensions for prompting, writing, rewriting, translation, summarization and proofreading.

That genuinely overlaps the summarize-and-rewrite half of this category. It does not replace multi-model sidebars, meeting notetakers, AI detectors, study tools, or web agents, and it obviously does not replace the extensions people install to hide Google’s AI, which are the fastest-growing group in this dataset.

Are AI Chrome extensions free?

Every extension here installs for free, but 44 of 132 (33%) sell in-app purchases, typically message limits or premium models on a subscription. The remaining 88 list no in-app purchase, though several sell plans on their own sites, so the flag is not a verdict on price. Check the Store upgrade column in the full directory, then check the publisher’s pricing page.

Are all these AI extensions just ChatGPT with a different logo?

No, and the multi-model sidebars are the proof. The leading sidebars exist specifically to switch between GPT, Claude, Gemini, DeepSeek and Perplexity on the same page, which would be pointless if they were all one model underneath.

What genuinely is shared is the plumbing: many smaller extensions are a prompt and an interface wrapped around somebody’s API, which is why two summarizers can return near-identical output. The difference that matters is not the model, it is which surfaces the extension reaches and which use cases it is built around. A tool that reads a Google Doc in place and one that only summarizes a public web page are different products even on identical weights.

Are AI Chrome extensions safe to install?

Safety depends on the permissions and the publisher, not on the extension being AI. Read the permissions prompt, prefer a large established review base over a high rating, and avoid anything not updated in over a year, which is 17 of the 132 here.

Do not treat Chrome’s Featured badge as a safety signal: 63% of these carry it. This report scores no security component at all, because Google publishes no per-extension vulnerability feed.

Do AI Chrome extensions slow down my browser?

An AI sidebar runs on every page you open, so its cost is constant rather than per-use, and several running at once is the case that actually hurts. This report does not benchmark performance and neither does anyone quoting a percentage at you. Chrome’s own task manager, in the three-dot menu, shows live memory and CPU per extension on your machine.

How many AI Chrome extensions are there?

This report tracks 132 AI-branded Chrome extensions holding 77,134,981 combined installs as of 11 September 2026. The Chrome Web Store publishes no API and blocks automated search, so the tracked set is curated rather than exhaustive, and it covers the extensions with meaningful adoption in each AI category.

How often is this AI Chrome extensions list updated?

Every figure is re-pulled from the live Chrome Web Store listings and the snapshot date appears at the top of the page. Because Chrome rounds install counts, the report also tracks review-count changes between snapshots, which move sooner and more precisely than installs.

Sources, method and how to cite this data

Source: each extension’s public Chrome Web Store listing page, read directly. The Web Store publishes no API, and its search is disallowed to automated clients by robots.txt, so this report updates a curated set rather than rediscovering the category each run. Adding an extension is a manual step.

Sample: 132 AI-branded Chrome extensions, 77,134,981 combined installs, 364,921 reviews, 109 publishers, 11 Web Store categories. Snapshots compared: 15 July 2026 and 11 September 2026, a 58-day window.

Ranking formula: Quality Score = 45% adoption (log of install count, normalized 0 to 100 across the dataset) + 35% rating score (rating out of 5, scaled to 100) + 20% trust score (log of review count, normalized 0 to 100 across the dataset). Identical to the formula in our AI Firefox add-ons report, so scores are comparable across both browsers.

Picks by job: the job groups and the shortlist inside each are editorial, because the Web Store’s own categories are too coarse to separate a meeting notetaker from a grammar checker. The winner inside each shortlist is whichever entry carries the highest quality score, so it is decided by the data rather than by preference.

Known limitation, stated plainly: Google rounds install counts, so the adoption input is a bucketed figure and short-term install movement is coarse. Review counts are exact and are the better momentum signal. Any growth claim in this report says which of the two it rests on.

Not measured: security and performance. Google publishes no per-extension vulnerability feed, so no security component enters the score, and this report runs no benchmark, so it makes no claim about how much any extension slows a browser.

The “Featured” flag is reported as published by the store and is a best-practice marker, not a security audit. The in-app-purchase flag covers purchases made inside the Web Store only, and says nothing about a subscription sold on the publisher’s own website.

No paid placement: no extension paid for inclusion, position, or a higher score. Ranking is entirely formula-driven from public store metrics you can check on any listing.

Cite as: zplatform.ai, “Best AI Chrome Extensions: Real Usage Numbers Report,” data pulled 11 September 2026.

Every number on this page traces to a row in the tables above, which is the point of publishing the formula next to the ranking. The best AI Chrome extension for you depends on the job you need done, and you should be able to check my working instead of taking my word for it.