MarTech Inspector - Detect & Debug Site Marketing Tools

MarTech Inspector is a verification tool for digital marketers, web owners, and developers. It automatically detects which marketing tools are running on the site you're viewing, and lets you check and edit Cookie, Storage, and data layer values right on the page. [Supported languages] Available in Japanese, English, French, Italian, Hindi, Spanish, Portuguese (Brazil), German, and Korean. Switch anytime via the 🌐 icon in the top right. 2026-09-15 : Published a user manual and added a link to it from within the extension. https://abet.jp/martech-inspector/manual/en/index.html [Key features] ■ MarTech Inspector (Detection tab) - Automatically detects up to 24 major marketing tools across categories like analytics, tag management, personalization, and CDPs (e.g. Google Analytics 4) - View and search Cookie/Storage/SessionStorage/data layer values - Edit values to test page behavior in real time - Visualize consent management (CMP) status and toggle consent categories to check how tags respond - Save verification scenarios and compare past snapshot history ■ Live Mock (Page editing tab) - Select any element on the page to swap its text, HTML, or image - Insert new elements (HTML injection) - Adjust image rotation, brightness, contrast, and more, or swap in a local image - Capture screenshots of the visible area or the full page ■ Image Inspector (Image tab) - List and search all images on the page - Download images (SVGs are auto-converted to PNG) - Click to jump to and highlight the matching spot on the page ■ A/B Calculator (Pro only) - Enter daily visitors, number of patterns, and conversion rate to estimate how long an A/B test needs to run and how many visitors it requires ■ Timeline (Pro only) - Plots each tool's script loads, network requests, and first variable appearance along a timeline of elapsed time since page load — useful for investigating why a specific tag is slow or not firing - Includes a verification feature to temporarily block a chosen script and instantly see how the page behaves without it The free version includes all core features: detection, value editing, and CMP visualization. Screenshots, element insertion, advanced image editing, A/B Calculator, and Timeline are available with the one-time Pro upgrade.