NovaJSON Prettifier
Extension Actions
- Live on Store
Auto‑formats raw JSON (object or array roots). Detection, theme‑aware highlighting, color pickers, avoids double‑formatting.
NovaJSON Prettifier turns ugly raw JSON into a clean, navigable view—automatically when a matching page is loaded.
★ Key features
• Auto-prettifies JSON on supported pages
• Collapse/expand nodes with persistent scroll position
• Inline search popup with highlight & smooth scroll
• 6 themes (3 light / 3 dark), plus key-color & font-size controls
• Safe HTML strings (shown as code, never rendered)
• One-click copy of any node/value
Permissions
Runs automatically via built-in content scripts. No extra permissions requested. No data leaves your device.
Privacy
No tracking, no advertising, no remote code—nothing nefarious.
Open source & support
• GitHub / Docs: https://github.com/CNJAY1911/NovaJSON-Prettifier
• Issues / Contact: [email protected]
Changelog
v3.0.0 - Added manual “Apply JSON formatter” trigger, smarter JSON detection, and UI tweaks (context menus, base URL swapper).
v2.0.0 – UI enhanced and auto-reload extension working
v1.1.1 – Theme styling across full UI
v1.1.0 – Added 6 themes, HTML-safe display, tap-to-run mode
v1.0.0 – Initial release: formatter, search, gutter, dark theme, icons
Latest reviews
- Ram Awadh
- Nice Effort! Execllent for User experience. Json Visiualzation, format , color changes and Zoom In/Out Feature is Nice! I Like Search Feature.
- Amit Kumar Saini
- Good faeture rich json viewer. search feature is quite good. some suggestions - add a feature to copy the result add a feature to view search params in better way
- Nisha Agarwal
- Excellent
- Vasim Akram
- Good work 👍
- Dinesh Sah
- Excellent features, keep it up
- Aryan Shukla
- Super useful extension for formatting and viewing JSON in a clean, readable format.
- Gautam Kochar
- Best JSON Formatter – Easy to Use with Full Customization, able to change font size, easy to expand and collapse, able to change font and background colour.
- Dimple Chauhan
- This extension does exactly what it's supposed to — formats and colorizes raw JSON responses in the browser, making them much easier to read. It saves a lot of time when debugging APIs or inspecting data structures. I like how it preserves the tree structure and allows me to collapse/expand nodes. The syntax highlighting is clean and easy on the eyes. Also appreciate the ability to copy values or keys easily.