JSON Viewer
The most beautiful and customizable JSON/JSONP highlighter that your eyes have ever seen
As of June 2026, JSON Viewer has 5 users in the Developer Tools category.
Usersno change0%
5
5
Ratingno change0%
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— reviews
Reviewsno change0%
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Version
0.19.7
Manifest V3
90-day change · In the last 90 days this extension 1 version update.
History
8 snapshotsTracking since Apr 7, 2026.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 7, 2026 | — | — | — | 0.19.2 |
| Apr 19, 2026 | — | — | — | 0.19.2 |
| Apr 26, 2026 | 3 | — | — | 0.19.2 |
| May 3, 2026 | 4 | — | — | 0.19.2 |
| May 9, 2026 | 5 | — | — | 0.19.2 |
| May 14, 2026 | 3 | — | — | 0.19.2 |
| May 20, 2026 | 3 | — | — | 0.19.7 |
| Jun 3, 2026 | 4 | — | — | 0.19.7 |
| Now | 5 | — | — | 0.19.7 |
Permissions & access
- Permissions
- storage
- Host access
- <all_urls>
Screenshots
About
JSON Viewer highlights JSON and JSONP content directly in your browser. When you open a URL that returns JSON, the extension automatically formats and syntax-highlights it. This is a maintained fork of the original JSON Viewer by Tulio Ornelas, updated to work with modern browsers (Manifest V3). Features: - Syntax highlighting with 27 built-in themes - Collapsible/foldable nodes - Clickable URLs within JSON values - Line numbers - Search within JSON content - Sort keys alphabetically - Works with JSONP responses - Handles numbers larger than Number.MAX_VALUE - Customizable tab size, themes, and CSS - Omnibox integration: type "json-viewer" in the address bar to format JSON or open a scratch pad - Configurable max file size for highlighting The extension only activates when it detects JSON content. It does not collect any data. Source code: https://github.com/rxliuli/json-viewer Original project: https://github.com/tulios/json-viewer
Technical
- Version
- 0.19.7
- Manifest
- V3
- Size
- 348KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- haeoijepjlgjkoefofnebcniaioihdae
- Developer ID
- u28ff49e7d19b0843e59be957d8f12994
- Developer Email
- [email protected]
- Created
- Apr 7, 2026
- Last Updated (Store)
- May 13, 2026
- Last Scraped
- Jun 8, 2026
- Website
- rxliuli.com
- Privacy Policy
- https://rxliuli.com/webstore/privacy/
Data sourced from the Chrome Web Store · last verified Jun 8, 2026.