Best AI Chrome Extensions in 2026

Looking for AI tools that actually fit how you browse? The best AI Chrome extensions don't open another tab—they work where you already are. Here are the top picks worth installing in 2026, including options for notes, chat, writing, and research.

What makes a great AI Chrome extension?

Before the list, a quick checklist:

• Stays in your workflow — sidebar or on-page, not a separate app you constantly alt-tab to
• Clear use case — notes, summarization, writing help, or chat—not all vague "AI magic"
• Reasonable privacy — know what data leaves your browser and when
• Free tier to try — so you can test before committing to a subscription

1. Dockbox — AI sidebar for notes, chat & YouTube summaries

Best for: People who want one sidebar for note-taking, AI chat, and YouTube summarization.

Dockbox is an AI Chrome sidebar that combines a full note editor, AI writing assistant, AI chat, and YouTube video summarization. Instead of juggling ChatGPT, a note app, and a transcript tool, you get all of it in one panel while you browse.

Standout features:

• Note editor with folders, Markdown import/export
• Built-in AI writing assistant with diff preview before accepting edits
• YouTube summarization from the video you're watching
• AI chat in Fast, Default, and Thinking modes

Pricing: Free plan with unlimited notes and limited AI credits; Pro for unlimited AI features.

Add Dockbox to Chrome · See pricing

2. Sider AI — AI sidebar assistant

Best for: General-purpose AI chat and reading help in a sidebar.

Sider is a popular Chrome extension that puts AI chat, page summarization, and writing help in a sidebar panel. It's a solid pick if you mainly want a flexible AI assistant while you browse, though you'll still want a dedicated tool if organized notes and YouTube workflows matter to you.

3. Grammarly — AI writing everywhere

Best for: Grammar, tone, and polish across the web.

Grammarly is the default for inline writing help in Gmail, docs, and text fields. It won't replace a dedicated note editor, but it's excellent for catching mistakes on the fly.

4. Merlin — General-purpose AI assistant

Best for: ChatGPT-style help on any page.

Merlin adds AI chat and quick actions across sites. Flexible, though you'll still need a separate system for organized notes and structured summaries.

5. Glasp — Social highlighting & YouTube notes

Best for: Highlighting web pages and building a public knowledge profile.

Glasp is strong for social reading and YouTube highlights. If you want a private sidebar workflow with AI summaries and a full editor, Dockbox vs Glasp is worth a read.

How to choose

For most people who live in Chrome and want AI without tab chaos, a unified AI sidebar beats stacking single-purpose extensions. Dockbox is built exactly for that—and you can try it free before upgrading.

Try Dockbox free in Chrome

Notes, AI chat, and YouTube summaries in one sidebar—install and see if it fits your workflow.

Add to Chrome