Understand This Page

One click in the side panel: AI reads the page you're on and answers the question that matters. No account, no setup, no prompts.

Understand This Page is an AI side panel for Chrome that helps you understand the page you are already viewing. Click "Understand this page" and the extension recognizes what kind of page you are on, then gives a structured answer shaped for that situation — whether you are weighing a purchase, evaluating a job ad, reading the news, or digging through documentation. It can also read text-based HTTPS PDFs directly from the current tab and compare pages you deliberately collect. It works on almost any regular web page. What it can help with: - Products: a buyer's verdict based on the visible price, availability, and reviews — and what the page leaves unanswered. - Jobs: how well the role fits you and what to ask the recruiter before applying. - Articles and news: the key claims, the evidence behind them, and what remains uncertain. - Videos: whether the video is worth your time, with a transcript-aware summary when a transcript is available. - Developer pages: repositories, code, and technical documentation explained in context. - Restaurants: a concise assessment plus one consistent full-menu view built from readable menu pages and linked PDFs. Answers are built to be checked, not just believed. Each one ends with a skeptical-read card that collects the red flags and the things left unsaid. On shopping and job pages, many points carry a small "Show on page" button that highlights the exact passage a point is based on, so you can verify the claim where it appears. Use the small + button to add supported pages to a temporary comparison list. The + button captures the page locally and does not run the full analysis; an unclear page type may need a brief classification request. Once two pages have been added, the main button becomes "Compare N pages". Product and job comparisons can include up to eight pages. SaaS and source comparisons can include up to four. Decision pages get a recommendation, while reading sources get a synthesis of shared claims, disagreements, and unique contributions. You can ask follow-up questions about the same page, and answers are available in 27 languages. For a PDF, readable text is extracted locally and kept only for the browser session so follow-ups can retrieve relevant source passages. Mixed PDFs are analyzed from the pages that can be read and show a coverage notice. Scanned, image-only, and password-protected PDFs are not supported yet. A keyboard shortcut (Ctrl+Shift+Y, or Cmd+Shift+Y on Mac) opens the panel directly. The extension runs only after you take an action. It does not read pages automatically, does not create an account, does not sync browser history, and contains no analytics. When you ask for an analysis, the captured page context is sent through Understand This Page's own service to OpenAI so the answer can be generated and plan limits enforced. Settings, cached answers, optional profile fields, and the billing email used for subscription actions are stored locally in Chrome extension storage. Analyzed products and job listings are also kept in a local history on your device while caching is enabled. Pages you explicitly add with the + button are captured locally and kept in a separate comparison list for the browser session. The + action sends only a limited excerpt when AI classification is needed for an unclear page type. Clicking Compare sends the selected captured contexts to the same service in one comparison request without reading the pages again. You can remove items or clear either list at any time. During a restaurant analysis, the extension may read linked same-site menu pages and eligible linked PDFs after the Analyze action. If local grouping is uncertain, a bounded set of exact captured menu-text tokens may be sent through the same service for AI grouping. Displayed dishes and prices are still reconstructed from the captured source text. An anonymous installation ID and technical request metadata are used for plan limits, abuse prevention, and subscription security. Optional profile text is included only when you fill those fields. Visible webmail content is processed only when you explicitly analyze that page and is never persistently cached. Purchase restore sends the short-lived code you enter only to Finnzon, not to OpenAI. The free plan includes a daily number of analyses — no account or card needed. Pro removes the daily limits under a generous fair-use policy, with checkout and billing handled on Stripe-hosted pages.