JSON Formatter Pro - Viewer with a Collapsible Tree
#11,875 of 274,294 by installs on Chrome · #7,583 of 165,072 in productivity
First seen by this census 09/01/2026 — the store does not publish a creation date
Last updated 08/20/2026
Tracked since 09/01/2026
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Category: productivity / developer
Languages: Deutsch, English, English (Australia), English (United Kingdom), English (United States), Filipino, Indonesia, Kiswahili, Melayu, Nederlands, Tiếng Việt, Türkçe, català, dansk, eesti, español, español (Latinoamérica), français, hrvatski, italiano, latviešu, lietuvių, magyar, norsk, polski, português (Brasil), português (Portugal), română, slovenčina, slovenščina, suomi, svenska, čeština, Ελληνικά, български, русский, српски, українська, עברית, العربية, فارسی, मराठी, हिन्दी, বাংলা, ગુજરાતી, தமிழ், తెలుగు, ಕನ್ನಡ, മലയാളം, ไทย, 中文（中国）, 中文（台灣）, 日本語, 한국어
Description
Auto-format and validate JSON & API responses instantly. Syntax highlighting, tree view, dark mode. Data never leaves your browser.
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Growth
Change in installs. This store publishes the count rounded to one or two significant figures, so it does not move when the listing grows - it moves when the rounding rolls over. The figures below are therefore what was actually observed between the two crawls named in "measured over", not scaled to the window, and the percentage is of that same rounding step - so a small listing crossing a bucket shows a very large one. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | Not enough history yet | |||
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Users
Ratings
Average rating
Permissions
Access level: Extensive — Reaches every website you visit, and holds a powerful capability as well.
- Reads and changes your data on all websites
- Read the contents of your clipboard
Ad blockers, password managers and VPNs need this kind of access to do their job. This describes what the extension can reach, not how it behaves.
Manifest V3
Reads and changes your data on all websites ⚠
- activeTab — See the page you're currently viewing, only when you click the extension
- alarms — Schedule its code to run at a later time
- clipboardRead ⚠ — Read the contents of your clipboard
- clipboardWrite — Write to your clipboard
- contextMenus — Add items to your right-click menu
- scripting — Run scripts on web pages you visit
- storage — Save its own settings and data locally