Best AI Browser Extensions in 2026

All-in-one AI sidebar extension with ChatGPT, Claude, and Gemini access that helps with writing, summarizing, translating, and explaining content on any webpage.

Best for: Users who want multiple AI models accessible from any website

AI assistant extension that provides chat, writing, translation, and image generation directly in your browser with support for all major AI models.

Best for: Professionals wanting a versatile AI companion while browsing

Brings Perplexity's AI search to any webpage, letting you ask questions about page content or research any topic without leaving your current tab.

Best for: Researchers and knowledge workers who need quick answers while browsing

AI writing assistant that works in every text field across the web, offering grammar correction, tone adjustment, and AI-powered rewriting suggestions.

Best for: Anyone who writes emails, messages, or documents in their browser

AI autocompletion extension that learns your writing style and suggests sentence completions as you type, working in email, docs, and chat platforms.

Best for: High-volume email writers who want faster composition

AI extension with web page summarization, YouTube transcript analysis, email writing, and custom AI prompts accessible via keyboard shortcut on any site.

Best for: Power users who want customizable AI actions on any webpage

AI-powered web highlighting and note-taking extension that summarizes articles, generates insights from your highlights, and creates a personal knowledge library.

Best for: Avid readers and researchers building a knowledge base from web content