Monica AI
AIFreemium
AI copilot for chat, translation and writing on any site.
4.932,200 reviews3M+
View Extension4 extensions
Best AI Chrome Extensions
AI Chrome extensions bring large language models directly into the pages you already work in — summarising articles, drafting replies and answering questions without a context switch.
All AI extensions
Merlin AI
AIFreemium
One AI assistant for summarising, writing and answering on any page.
4.88,800 reviews900K+
View Extension
Perplexity
AIFreemium
Answer engine with cited sources built into the browser.
3.8444 reviews400K+
View ExtensionChatGPT for Google
AIFree
Shows AI answers alongside your normal search results.
Not currently listed on the Chrome Web Store
View ExtensionRelated categories
AI comparisons
Side-by-side pages for the pairs people compare most in this category.
Monica vs Merlin AITwo all-in-one AI sidebars compared on model access, free quota and page context.Monica vs PerplexityA general AI assistant against a cited, search-first answer engine.ChatGPT for Google vs PerplexityAI answers beside your search results, or a replacement for the results page.Monica AI vs ChatGPT for GoogleBoth are ai extensions people shortlist together for ai — see how ratings, install base, pricing and day-to-day use differ.All comparisonsEvery head-to-head comparison, grouped by category.
Shortlists and alternatives
Best Productivity Chrome ExtensionsTen productivity Chrome extensions worth installing, with live Chrome Web Store ratings and install counts, honest trade-offs and a permissions checklist.Best AI Chrome ExtensionsThe AI Chrome extensions worth a permission grant, grouped by the job they do: answering, summarising, writing and archiving. Live store ratings and honest limits.Best SEO Chrome ExtensionsSeven SEO Chrome extensions that answer a question faster than a dashboard: on-page audits, keyword overlays and competitor stacks, with accuracy caveats.Monica AI alternativesClosest replacements for Monica AI.Merlin AI alternativesClosest replacements for Merlin AI.Perplexity alternativesClosest replacements for Perplexity.
Frequently asked questions
What is the best ai Chrome extension?
Monica AI currently leads this category on rating and review volume, but the right choice depends on whether you need ai features for personal or team use.
Are there free ai extensions?
Yes — 1 of the 4 extensions in this category are free, and several more offer a usable free tier.
How are these extensions ranked?
By install base and rating, with editorial notes on trade-offs.