Broken Link Detector

Broken Link Detector is a fast, privacy-first Chrome extension that instantly audits any webpage for link health. Designed specifically for web professionals, SEOs, and content managers who are tired of clunky and expensive SEO tools, this extension runs completely locally in your browser. It evaluates every link in real-time without ever sending your browsing data or page content to a remote server.

How It Works Instead of using an annoying popup menu that closes the second you click away, Broken Link Detector lives in a persistent, docked sidebar. When you click "Scan This Page," a live progress bar appears, and the tool evaluates every link on the page using an intuitive color-coded system: Green for working links, Yellow for redirects, and Red for broken URLs. It goes far beyond basic 404 detection by accurately identifying internal server errors (500s), connection timeouts, and 301/302 redirects (explicitly displaying their final destination URL).

Focus Mode & Exports One of its standout features is "Focus Mode." If you spot a broken link in the sidebar report, simply click it, and the extension will visually highlight that exact link directly on the webpage, making it incredibly easy to locate and fix inside your CMS. For agencies and freelancers, the tool also includes a one-click CSV export so you can easily generate audit reports for clients.

Key Features:

• Real-Time Scanning: Watch results populate instantly with a live progress bar.

• Persistent Sidebar UI: The tool docks to the side of your screen and stays open while you work.

• Comprehensive Detection: Finds 404s, server errors (500, 502, 503), timeouts, and 301/302 redirects.

• Focus Mode: Visually highlights broken or redirected links directly on the active webpage.

• 100% Local & Private: No account required. All scanning happens in your browser, keeping your data entirely secure.

• CSV Export: Download your full audit report with one click.