Browser extension

    Free SEO + AI-search insights.
    No login. No tracking.

    LemRank Lens audits any page in under 150ms — meta, schema, images, links, SERP preview, and the sources ChatGPT, Perplexity, and Gemini are quoting.

    Try it in your browserHow to install
    No login required
    No tracking, ever
    Free forever
    What it does

    Eight tools in one panel

    On-page audit

    Title, meta, canonical, robots, hreflang, OG/Twitter, headings — copyable as Markdown.

    SERP simulator

    Live-edit your title and description. See desktop and mobile previews with truncation warnings.

    Schema validator

    Inspect every JSON-LD block on the page with a collapsible graph and missing-field flags.

    AI Overview sources

    When Google shows an AI Overview, the panel lists the cited sources for one-click auditing.

    AI-search overlays

    See the source list ChatGPT, Perplexity, and Gemini are pulling from — instantly.

    Image and link audits

    Missing alt text, oversized images, dedup-aware internal/external/nofollow link counts.

    The three promises

    What Lens will never do

    • No analytics

      Zero pixels. Zero pings. The extension contains no telemetry code.

    • No page contents

      We never receive what is on the page you audit, unless you click Share.

    • No identity

      No account is required. We do not know who you are.

    Read the full privacy breakdown
    Install in 30 seconds

    Four steps, any Chromium browser

    Works in Chrome, Edge, Brave, Arc, and Opera.

    1. 1Click "Download zip" below.
    2. 2Unzip the file anywhere on your computer.
    3. 3Open chrome://extensions and turn on Developer mode (top right).
    4. 4Click "Load unpacked" and select the unzipped folder.
    Why these permissions?

    Keyboard shortcuts

    • Alt + L — open the side panel
    • Alt + S — share the current audit

    Where it works

    Any http(s) page. SERP overlays activate on Google search, ChatGPT, Perplexity, and Gemini.

    Changelog·Roadmap·Privacy·Permissions