PageLens

Free

★ 1 • Updated Aug 26, 2026, 03:17 PM

PageLens is a browser-based AI assistant that lives in a sidepanel and helps users quickly understand the content of their open tabs.

Use Cases ▼

Summarizing long-form articles and blog posts in the browser

Extracting key points from technical documentation and API references

Reviewing multiple open tabs by generating quick summaries for each

Getting a preview of a webpage before committing to a full read

Condensing research sources into digestible overviews

Reducing time spent on content scanning during daily browsing

What Problem It Solves ▼

PageLens solves the problem of information overload while browsing by providing instant AI-generated summaries of the current tab. Instead of reading long articles or documentation manually, users can open the sidepanel and get a concise overview, enabling faster comprehension and better focus.

Key Features ▼

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Free and open source

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Read-only design preserves page integrity

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Uses Claude for high-quality summarization

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Sidepanel UI integrates into the browsing workflow

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Reduces time spent reading long content

Overview

PageLens is a browser-based AI assistant that lives in a sidepanel and helps users quickly understand the content of their open tabs. It uses Anthropic's Claude model to read the active page and generate a concise summary, allowing users to grasp the main points of articles, documents, and web pages without reading them in full. The tool is designed to be read-only, meaning it does not modify or interact with page content, and it focuses on improving productivity by reducing the time spent on manual scanning.

Full Description ▼

Hosted as an open source project on GitHub, PageLens is available free of charge and can be installed as a browser extension. Its sidepanel interface keeps the AI summary accessible while browsing, making it easy to switch between tabs and review condensed information. The project is aimed at users who regularly consume large amounts of online content and want a lightweight, AI-powered reading companion.