Schema App Highlighter Extension icon

Schema App Highlighter Extension

by Schema App · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

The world’s first complete visual schema markup highlighter.

Users
77
−3 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
+1 in 30 days
Store rank
#93K
#77K among extensions
Version
1.13.7
updated 13 Oct 2026

Users

monthly, 12 months
04182Oct 2025May 2026Oct 2026
Latest, 16 Oct 2026: 77 usersMove the mouse over the chart for any month

Ratings count

monthly, 12 months
012Oct 2025May 2026Oct 2026
Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Schema App Highlighter Extension

Schema App Highlighter: The Fastest Way to Author Schema Markup at Scale The Schema App Highlighter is part of Schema App’s scalable, enterprise-grade Schema Markup Solution. The Schema App Highlighter is a Google Extension to help you author semantic schema markup. When connected with Schema App’s platform, it enables Enterprises to create, edit, and deploy Schema Markup at scale to any website, on any CMS—without relying on IT—so you can achieve search visibility faster. The Highlighter has built-in recommendations to help you author Schema Markup accurately and efficiently, aligned with Google and Schema App’s best practices, with the goal to future-proof your digital presence for AI search and the agentic web. Key Features - Implement and Manage Markup at Scale: Create templates for similar page layouts and apply Schema Markup across them. Markup automatically updates as content changes, preventing Schema Drift. - Automate Entity Linking on Your Web Page: Automatically identify and connect named entities to internal or external sources, embedding them directly into your markup to build a reusable content knowledge graph that boosts authority, discoverability, and clarity. - Access the Full Schema.org Vocabulary: Use any schema class, property, or pending term with automatic updates within 24 hours of new Schema.org releases. - Rich Result Guidance: See Google’s required and recommended properties directly in the tool, with automated validation to reduce errors and ensure rich result eligibility. - Full JSON-LD Preview: Review complete Schema Markup—including linked entities—before deployment to simplify QA and accelerate implementation. - Faster Time to Value: Apply validated Schema Markup instantly on live or staging pages without rendering issues or engineering dependencies. Schema App’s Enterprise solution scales across any website or content type, ensuring speed, security, and measurable ROI through expert support and continuous innovation. The Schema App Highlighter extension is available to Schema App Enterprise customers as part of our end-to-end Schema Markup solution. Eligible users can log in through the extension to start creating templates and marking up pages directly in their browser.

Growth

WindowUsersChangeRatingsRating
7 days−4−4.9%00.00
30 days−3−3.8%+10.00
6 months+31+67.4%+2+5.00

Version history

44 versions recorded
1.13.713 Oct 2026
1.13.624 Sep 2026
1.13.418 Sep 2026
1.13.216 Sep 2026
1.13.114 Sep 2026
1.13.04 Sep 2026
1.12.53 Sep 2026
1.12.42 Sep 2026

Details

Category
Developer Tools
First seen
25 Oct 2025
Size
5.3 MB
Languages
en
Pricing
Free
Privacy policy
schemaapp.com
Support
support.schemaapp.com
Extension ID
pidmgphokpfgnnjhbenpdkgegbalpbgc

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
declarativeNetRequestactiveTabstorage
Site access
<all_urls>http://*/*https://*/**://*/*
Can read and change data on every website you visit.

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