uJson - JSON Formatter & Viewer
#11,913 of 19,277 by installs on Edge · #1,055 of 1,749 in Developer-Tools
First seen by this census 09/02/2026 — the store does not publish a creation date
Last updated 02/26/2026
Tracked since 09/02/2026
Compare with another extension
Category: Developer-Tools
Description
Auto-format JSON responses with syntax highlighting, collapsible tree view, dark mode & built-in editor
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Growth
Change in installs, scaled to each window from the real gap between crawls. This store refreshes its install counts only occasionally, so these figures usually read 0 even for a listing that is growing - the weekly change in ratings under Rating above is the better signal here. A window needs a full period of history before it reports anything.
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | 0 | — | 0 | 1.2 days |
| week | 0 | — | 0 | 9.2 days |
| month | Not enough history yet | |||
| year | Not enough history yet | |||
History
Tracking since 09/02/2026. History accumulates as changes are observed — check back soon.
Permissions
Access level: Broad — Reaches every website you visit, or holds a powerful capability.
- Reads and changes your data on all websites
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
- clipboardWrite — Write to your clipboard
- storage — Save its own settings and data locally