Highlight Ads Detector – Not an Ad Blocker

See every ad on the page. Ad detector that outlines slots with a bold overlay, not an ad blocker.

Highlight Ads outlines and identifies advertising slots across any webpage with bold, customizable overlays and clear AD badges, giving you instant visual transparency into where ads live as you browse. Highlight Ads is built for transparency: it is NOT a traditional ad blocker. It doesn't break page layouts, trigger anti-adblock scripts, or disrupt site functionality. You can choose between translucent accent colors to inspect ads, or an adaptive solid cover that conceals ad content behind high-contrast badges. KEY FEATURES • Seven Highlight Styles: Pick from multiple translucent color accents or an Adaptive Theme Mode that automatically covers ads in 100% solid white on light sites and solid black on dark sites. • Per-Site Pause & Exclusion: 1-click button in the popup to pause ad highlighting on specific websites, and resume whenever you return. • Automatic Detection: Powered by the community-maintained EasyList filter set to recognize standard banners, video slots, and iframes. • Native Ad & Sponsored Widget Detection: Intelligently detects Taboola, Outbrain, and sponsored native widgets through script creation stack analysis. • Live Tab Counter: View the real-time count of detected ad slots right on the toolbar badge and inside the popup. • Glued & Responsive Scrolling: Overlays stay precisely anchored to banners and sticky headers as you scroll across modern single-page apps (SPAs). • Lightning-Fast & Zero Lag: Built with debounced scanning and requestAnimationFrame scroll capture for smooth 60fps browsing. • Automatic Filter Updates: Filter rules refresh automatically, with an instant one-click manual update option in the popup. • 100% Private & On-Device: Detection runs entirely in your browser. No personal data, browsing history, or analytics are ever collected or transmitted. HOW TO USE 1. Install the extension and browse the web as usual. 2. Ad slots will be outlined or covered automatically with your chosen highlight style. 3. Click the extension icon in your toolbar to: - Toggle highlighting ON or OFF - Pause or resume on the current website - Choose your favorite highlight color or adaptive theme cover - View the active ad count on the tab - Manually refresh the EasyList rule engine PRIVACY & DATA SAFETY Highlight Ads collects zero user data. The only network request made is the periodic background download of the public EasyList filter set to keep detection rules current. No telemetry, no third-party servers, and no tracking. CREDITS & OPEN SOURCE • Ad detection rules by EasyList (https://easylist.to) • Filter engine powered by @ghostery/adblocker (MPL 2.0) • Website: https://gauravlabs.com • Source Code: https://github.com/gauravvyadav/highlight-ads