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Is JSON Formatter safe to install?

JSON Formatter asks for 1 browser permission and 2 site patterns. We do not audit code and we do not judge intent; what we can show is what the listing declares and whether that has changed while we have been watching.

JSON Formatter

Chrome extension by postnovapm · Productivity · Developer

Open in the Chrome Web Store
What the developer says, and 3 screenshots

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

At a glance

Facts, not a score: an ad blocker needs every page and a theme needs nothing, so one number would be wrong about both. Each fact links to its detail.

Site access
Access to specific sites only
Data collection
Declares it collects none
Publisher
No store badges
Audience
586 users · 5.0/5

What data it declares

The developer declares that it does not collect or use your data.

The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.

The listing links to a privacy policy.

This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

What Chrome asks you to allow

When you add it, Chrome asks you to allow it to:

Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.

What it can reach

Specific sites only: 2 match patterns.

Routine for an extension

How usual this is for its category

In Productivity · Developer, 30% of extensions ask for access to every site. This one: Access to specific sites only.

The typical extension there declares 3 browser permissions; this one declares 1 browser permission.

Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.

Who uses it and how it is kept up

586 users

Users
-20 since 31.08
554-618 · 36 readings
  1. 2026-08-31606
  2. 2026-09-02610
  3. 2026-09-03609
  4. 2026-09-04595
  5. 2026-09-05600
  6. 2026-09-07608
  7. 2026-09-08618
  8. 2026-09-10615
  9. 2026-09-13605
  10. 2026-09-15611
  11. 2026-09-17606
  12. 2026-09-21598
  13. 2026-09-22610
  14. 2026-09-25606
  15. 2026-09-26598
  16. 2026-09-28601
  17. 2026-10-05577
  18. 2026-10-08554
  19. 2026-10-09571
  20. 2026-10-10587
  21. 2026-10-11589
  22. 2026-10-13585
  23. 2026-10-16584
  24. 2026-10-17579
  25. 2026-10-18577
  26. 2026-10-19578
  27. 2026-10-21579
  28. 2026-10-22574
  29. 2026-10-23579
  30. 2026-10-24574
  31. 2026-10-25580
  32. 2026-10-27577
  33. 2026-10-29584
  34. 2026-11-01583
  35. 2026-11-03586
  36. 2026-11-06586

What the store shows

The store shows none of its badges on this listing. Most listings carry none.

Has it asked for more over time?

This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.

The permissions this extension requests have not changed since we started watching it.

Who publishes it

postnovapm, who publishes 6 listings we track. This listing has been in the store since 2024-09-22 and was last updated on 2024-11-04.

Similar extensions that ask for less

Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.

  1. JSON Formatter & Validator - JFmt No permissions at all · No permissions declared 4 users ★ 5.0
  2. JSON Groomer No site access · 1 permission 10 users
  3. JSON Formatter — Viewer & Beautifier Runs its code on every site · 1 permission 15 users ★ 5.0

How to check or remove it in Chrome

  1. Type chrome://extensions in the address bar and find the extension in the list.
  2. Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
  3. To uninstall it, choose Remove on the same page.

Questions people ask

What can JSON Formatter access?
Specific sites only: 2 match patterns. It declares 1 browser permission.
What data does JSON Formatter collect?
The developer declares that it does not collect or use your data. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.
Has JSON Formatter asked for more permissions over time?
The permissions this extension requests have not changed since we started watching it.
Does JSON Formatter publish a privacy policy?
Yes, the store listing links to a privacy policy.

We read the public store listing up to 2 times a day and keep what it declared. We do not install the extension, do not audit its code, do not judge its intent and publish no contact details for its developer. Last read on 2026-11-06.

Back to JSON Formatter · Alternatives to JSON Formatter

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