Best AI Chrome Extensions for Productivity (That Are Actually Free)

Discover the top free AI Chrome extensions in 2026. Harpa, Perplexity, and Sider—boost productivity without a subscription.

Feb 14, 2026 5 min read

This article highlights a small set of free AI Chrome extensions that reduce friction while browsing, researching, and writing. Instead of focusing on features, it shows how tools fit naturally into daily workflows without forcing subscriptions.

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Priyanshu Maurya
Founder, The Xizoa
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Most AI Chrome extensions don't fail because they're bad. They fail because they interrupt you.

You install them to save time, and minutes later you're switching tabs, rewriting prompts, or hitting limits that break your focus.

The tools below work differently. They stay close to what you're already doing and step in only when something starts slowing you down.

1. Harpa AI

Harpa doesn't ask you to switch tabs or explain context. It works on the page you're already on.

Reading something long? It shortens it. Comparing products? It tracks prices quietly. Replying to an email? It drafts with the context already in mind.

The strength here isn't the AI model. It's awareness.

Harpa feels less like a chatbot and more like the browser learned how to help.

The free tier is enough for daily use as long as you're using it normally.

Once it becomes part of your flow, tab-based AI starts to feel unnecessary.

2. Perplexity (The Google Killer)

Not every question deserves a Google search. Sometimes you just need clarity and to move on.

Perplexity works in those moments. Highlight a term, ask from the toolbar, get a short answer with sources — without opening a new tab.

No SEO fluff. No rabbit holes. Just enough context to keep your momentum.

The free tier handles everyday questions easily. It starts feeling limited only when you push it into deep research mode.

Perplexity doesn't replace Google. It replaces the friction around it.

Note: If you are wondering if paying for premium AI is ever worth it, I broke down the math in my review: Is Google Gemini Advanced Worth the Subscription?.

3. Sider (The Sidebar Assistant)

Sider is built for people who don't want to choose which AI tool to open every time.

It lives in a sidebar and gives you access to multiple models while you keep working on the same page.

You can write, rewrite, summarize PDFs, and ask questions about images without breaking your flow.

The free daily usage quietly covers most real work. You only notice limits if you're pushing it all day.

Sider isn't about raw power. It's about convenience.

And for everyday work, convenience wins.

When videos are longer than your patience — YouTube Summary

Most tutorials are longer than they need to be. You don't have to sit through them.

This works great for videos. But if you need to summarize complex documents or audio files, read my breakdown of Google NotebookLM here.

This extension adds a simple summary option next to YouTube videos, turning long explanations into quick bullet points and timestamps.

You decide in seconds whether a video is worth your time, instead of finding out twenty minutes later.

Taken together, these tools cover different moments of everyday work — reading, searching, writing, and deciding where your time is actually worth spending.

Once you start saving time with these extensions, you might want to organize your research better. Check out my guide on Building a Second Brain with NotebookLM & Obsidian.

They don't try to overhaul how you work. They quietly remove the small interruptions that slow you down. Less tab-switching, fewer dead ends, and just enough AI help where it matters. For most people, that's the difference between experimenting with AI and actually relying on it.

POSTED IN: AI Tools & Productivity