A Chrome extension that replaces Ctrl+F when you need to search for many terms at once. Think “ERROR”/“WARNING” in logs, or “JavaScript”/“Machine Learning”/“AI” across resumes.

Highlighter Extension demo

Key Features

  • Multi-keyword search: Drop in a list of terms and highlights bloom instantly across the page
  • Hidden content detection: Finds matches even in collapsed sections, accordions, and tabs—click to reveal and scroll
  • Fast: Uses CSS Custom Highlights API—no injected wrappers, no layout shifts, works on huge pages
  • Badge counts: The extension icon shows match counts, so you can scan multiple tabs at a glance
  • Keyboard-first: Open with Ctrl+Shift+F, navigate with H/K, all shortcuts rebindable
  • Privacy-first: Everything runs locally in your browser—no accounts, no cloud, no tracking

Who It’s For

  • Recruiters scanning pages for skill names across many resumes
  • Researchers and students jumping through docs where fancy layouts defeat standard find
  • Developers scanning web logs for “WARN” and “ERROR” and “ThisSuspiciousClass” simultaneously

Technical Approach

The extension leverages the native CSS Custom Highlights API instead of injecting wrapper elements like <span> or <em>. This means:

  • No layout shifts or jank even on massive pages
  • Works reliably on dynamic SPAs (LinkedIn, Jira, Confluence, etc.)
  • Cross-frame support—matches inside iframes are revealed from the top page
  • Memory-light with low CPU overhead