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Liner ChatGPT AI Copilot Chrome Extension

Summarizes and lets you chat with webpages, PDFs, and YouTube videos using AI.

Checked 3 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Liner ChatGPT AI Copilot Chrome Extension

At a glance

Starts at Free Listed as free on the Chrome Web Store.
Free tier Yes
Platforms Chrome
Best for Students and researchers digesting long content
Not for People needing multiple AI models on the free plan

4.4 out of 5

Scored by Alex after real use

Our verdict

Liner Copilot adds an AI you can ask questions of directly on any webpage, PDF, or YouTube video, summarizing and letting you highlight key points as you go. The free Basic plan covers search, summaries, highlighting, and bookmarking. Access to multiple AI models and file uploads is reserved for the paid Liner Pro plan, and it's built up a strong track record with roughly 6,000 reviews at 4.4 out of 5.

✓What it does well

Cross-format summariesIt summarizes webpages, PDFs, and YouTube videos in the same way.
In-context AI searchYou can ask AI Copilot questions directly on whatever page you're viewing.
Established track recordIt holds around 6,000 reviews at 4.4 out of 5.

✕Where it falls short

Model choice is paidAccess to multiple AI models is locked behind the paid Pro plan.
File upload is paidUploading files for the AI to read requires the Pro subscription, not the free Basic plan.
Reading-focused scopeIt's built around summarizing and highlighting existing content, not general chat conversation.

Key features

AI searchIt answers questions directly on any webpage without opening a separate tab.
Web, PDF, and video summariesIt generates concise summaries for webpages, PDFs, and YouTube videos alike.
HighlightingIt highlights and saves key passages from articles and videos.
Bookmark organizationIt keeps your highlights and findings organized in one place.

Questions about Liner ChatGPT AI Copilot Chrome Extension

What does Liner ChatGPT AI Copilot Chrome Extension do?

The Liner ChatGPT AI Copilot Chrome Extension adds an AI that answers questions directly on any webpage, PDF or YouTube video. It summarizes content, highlights and saves key passages, and keeps highlights and findings organized in one place.

Is Liner ChatGPT AI Copilot Chrome Extension free?

The extension is listed as free on the Chrome Web Store, and the free Basic plan covers search, summaries, highlighting and bookmarking. Access to multiple AI models and file uploads is reserved for the paid Liner Pro plan.

Who is Liner ChatGPT AI Copilot Chrome Extension for?

Toolio lists it as best for students and researchers digesting long content. It is not for people who need multiple AI models on the free plan, and the reviewer notes it is built around summarizing and highlighting existing content rather than general chat.

How well reviewed is Liner ChatGPT AI Copilot Chrome Extension?

The extension holds around 6,000 reviews at 4.4 out of 5, which the reviewer counts as an established track record. Alex also scores it 4.4 out of 5 after real use, in a review checked on 3 Oct 2026.

What are some alternatives to Liner ChatGPT AI Copilot Chrome Extension?

Toolio lists the Text Assist Chrome Extension, which translates, summarizes and polishes selected text using the user's own API key, and Prompt Genie, which saves Claude API costs with context memory. The Kimi 小助手 Chrome Extension, an AI sidebar for Chrome, is also listed.

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