Best AI Chrome Extensions in 2026
The most useful AI-powered Chrome extensions that actually improve your browsing. From search to writing to research.
AI extensions exploded in 2025 and the dust is settling. Most were gimmicks. These four actually make your browser smarter.
1. ChatGPT for Google (AI Chat for Search)
See AI answers alongside your Google search results. No tab switching, no copy-pasting queries. The AI response appears right there in the search page.
Rating: 4.1/5 · Users: 2M+ · Price: Free
2. Perplexity
Perplexity takes AI search to another level. Ask any question and get a well-researched answer with cited sources. The Chrome extension lets you highlight text on any page and ask Perplexity about it.
What sets it apart: Every answer includes citations. You can verify what the AI tells you.
Rating: 4.6/5 · Users: 1M+ · Price: Freemium
3. MaxAI.me
Use ChatGPT, Claude, Gemini, and other AI models on any webpage without switching tabs. Summarize articles, translate text, explain code, and chat with AI in a sidebar. Supports multiple models.
Best for: People who want AI assistance everywhere, not just in search.
Rating: 4.7/5 · Users: 800K+ · Price: Freemium
4. Grammarly
The OG AI writing assistant, and still the best. Grammarly checks grammar, spelling, tone, and clarity in every text field across the web. The AI-powered suggestions go far beyond simple spell check.
The numbers: 43M+ users and a 4.9 rating — the most popular and highest-rated extension on this entire list.
Rating: 4.9/5 · Users: 43M+ · Price: Freemium
The AI Truth
Most AI extensions are thin wrappers around the same APIs. The ones listed here either have unique value (Perplexity's citations, Grammarly's deep language model) or provide genuinely useful integration (ChatGPT in search results, MaxAI's multi-model sidebar).