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Schema Markup Viewer

Chrome extension by Serhii Pohorilyi · Productivity · Developer

A Chrome extension in Productivity · Developer with 395 users, barely installed. Audience over the last 30 days: -18.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
395
Rating
4.0 (1 ratings)
Users, last 30 days
-18
Rating, last 30 days
Steady over 30 days
Version
1.4
Updated in the store
2026-05-04
Published
2026-01-21
Manifest
V3
Browser access
2 permissions

How it has moved

Users
-18 since 02.10
395-434 · 20 readings
  1. 2026-10-04430
  2. 2026-10-08434
  3. 2026-10-09431
  4. 2026-10-10420
  5. 2026-10-13415
  6. 2026-10-16414
  7. 2026-10-17421
  8. 2026-10-18425
  9. 2026-10-19424
  10. 2026-10-20427
  11. 2026-10-21426
  12. 2026-10-22415
  13. 2026-10-23412
  14. 2026-10-24417
  15. 2026-10-25407
  16. 2026-10-26406
  17. 2026-10-28405
  18. 2026-10-29397
  19. 2026-10-30398
  20. 2026-11-01395
Rating
unchanged since 02.10
reviewsrating 4.00 · 20 readings
  1. 2026-10-04reviews1rating4.00
  2. 2026-10-08reviews1rating4.00
  3. 2026-10-09reviews1rating4.00
  4. 2026-10-10reviews1rating4.00
  5. 2026-10-13reviews1rating4.00
  6. 2026-10-16reviews1rating4.00
  7. 2026-10-17reviews1rating4.00
  8. 2026-10-18reviews1rating4.00
  9. 2026-10-19reviews1rating4.00
  10. 2026-10-20reviews1rating4.00
  11. 2026-10-21reviews1rating4.00
  12. 2026-10-22reviews1rating4.00
  13. 2026-10-23reviews1rating4.00
  14. 2026-10-24reviews1rating4.00
  15. 2026-10-25reviews1rating4.00
  16. 2026-10-26reviews1rating4.00
  17. 2026-10-28reviews1rating4.00
  18. 2026-10-29reviews1rating4.00
  19. 2026-10-30reviews1rating4.00
  20. 2026-11-01reviews1rating4.00
Users
+23 since 31.08
372-434 · 37 readings
  1. 2026-08-31372
  2. 2026-09-02375
  3. 2026-09-03376
  4. 2026-09-04373
  5. 2026-09-05374
  6. 2026-09-06381
  7. 2026-09-07388
  8. 2026-09-08390
  9. 2026-09-09391
  10. 2026-09-13385
  11. 2026-09-15386
  12. 2026-09-16389
  13. 2026-09-20396
  14. 2026-09-21395
  15. 2026-09-25401
  16. 2026-09-26408
  17. 2026-09-28413
  18. 2026-10-04430
  19. 2026-10-08434
  20. 2026-10-09431
  21. 2026-10-10420
  22. 2026-10-13415
  23. 2026-10-16414
  24. 2026-10-17421
  25. 2026-10-18425
  26. 2026-10-19424
  27. 2026-10-20427
  28. 2026-10-21426
  29. 2026-10-22415
  30. 2026-10-23412
  31. 2026-10-24417
  32. 2026-10-25407
  33. 2026-10-26406
  34. 2026-10-28405
  35. 2026-10-29397
  36. 2026-10-30398
  37. 2026-11-01395
Rating
unchanged since 31.08
reviewsrating 4.00 · 37 readings
  1. 2026-08-31reviews1rating4.00
  2. 2026-09-02reviews1rating4.00
  3. 2026-09-03reviews1rating4.00
  4. 2026-09-04reviews1rating4.00
  5. 2026-09-05reviews1rating4.00
  6. 2026-09-06reviews1rating4.00
  7. 2026-09-07reviews1rating4.00
  8. 2026-09-08reviews1rating4.00
  9. 2026-09-09reviews1rating4.00
  10. 2026-09-13reviews1rating4.00
  11. 2026-09-15reviews1rating4.00
  12. 2026-09-16reviews1rating4.00
  13. 2026-09-20reviews1rating4.00
  14. 2026-09-21reviews1rating4.00
  15. 2026-09-25reviews1rating4.00
  16. 2026-09-26reviews1rating4.00
  17. 2026-09-28reviews1rating4.00
  18. 2026-10-04reviews1rating4.00
  19. 2026-10-08reviews1rating4.00
  20. 2026-10-09reviews1rating4.00
  21. 2026-10-10reviews1rating4.00
  22. 2026-10-13reviews1rating4.00
  23. 2026-10-16reviews1rating4.00
  24. 2026-10-17reviews1rating4.00
  25. 2026-10-18reviews1rating4.00
  26. 2026-10-19reviews1rating4.00
  27. 2026-10-20reviews1rating4.00
  28. 2026-10-21reviews1rating4.00
  29. 2026-10-22reviews1rating4.00
  30. 2026-10-23reviews1rating4.00
  31. 2026-10-24reviews1rating4.00
  32. 2026-10-25reviews1rating4.00
  33. 2026-10-26reviews1rating4.00
  34. 2026-10-28reviews1rating4.00
  35. 2026-10-29reviews1rating4.00
  36. 2026-10-30reviews1rating4.00
  37. 2026-11-01reviews1rating4.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Serhii Pohorilyi.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Schema Inspector — Structured Data & JSON-LD Validator Describes nearly the same job, smaller audience 18 users
  2. Schema Markup Viewer - Structured Data Inspector Describes nearly the same job, smaller audience 304 users ★ 5.0
  3. Schema Checker - Structured Data, JSON-LD & Microdata Describes nearly the same job, smaller audience 17 users
  4. SEOMarkup Structured Data Schema Inspector Describes nearly the same job, smaller audience 4k users ★ 5.0
  5. Schema Markup Extractor & Visualizer: JSON-LD, RDFa, Microdata Describes nearly the same job, smaller audience 128 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built