Comparison
How Best JSON Viewer stacks up against popular alternatives.
Choosing a JSON viewer extension comes down to what you need. This page gives you an honest, feature-by-feature comparison with the most popular options on the Chrome Web Store so you can make an informed decision.
Feature Comparison
| Feature | Best JSON Viewer | JSON Formatter | JSON Viewer | JSON Beautifier & Editor |
|---|---|---|---|---|
| Tree view | Yes | Yes | Yes | Yes |
| Raw / syntax highlight | Yes (Shiki) | Yes | Yes | Yes |
| Table view | Yes | No | No | No |
| Graph / visualize | Yes | No | No | No |
| Inline editing | Yes (live validation) | No | No | Yes |
| JSONata queries | Yes (8 presets) | No | No | No |
| Pagination | Yes (50 per page) | No | No | No |
| Dark mode | Yes | Yes | Yes | Yes |
| Code folding | Yes | Yes | Yes | Yes |
| Clickable URLs | Yes | Yes | Yes | Yes |
| Copy to clipboard | Yes | Yes | Yes | Yes |
| Export as file | Yes (smart filename) | No | No | Yes |
| Element picker | Yes (Shadow DOM) | No | No | No |
| Element picker | (extracts JSON from any page) | |||
| Secondary viewer (iframe) | Yes | No | No | No |
| Auto-detect JSON | Yes (optional) | Yes | Yes | No |
| Virtual scrolling | Yes (all views) | No | No | No |
| Search / filter | Via JSONata | Yes | Yes | Yes |
| Cross-browser | Chrome + Firefox | Chrome only | Chrome only | Chrome only |
| Zero telemetry | Yes | No | Yes | No |
| Open source | Yes | Yes | Yes | No |
| Size | ~Small | 77 KB | ~Small | ~Medium |
Where We Shine
JSONata Query Language
No other JSON viewer offers a built-in query language. Best JSON Viewer embeds full JSONata support with 8 context-aware presets — filter, map, search, slice, sort, count, pick fields, and custom expressions. Results propagate into every view mode.
Table View
Render any JSON as a virtual-scrolled table. Arrays of objects get dynamic columns; nested values expand inline. No other viewer does this.
Graph Visualization
Explore JSON structure as an interactive node graph powered by jsoncrack-react. Immediately see relationships and hierarchies.
Virtual Scrolling
Every view mode — Tree, Raw, Table — uses @tanstack/react-virtual for virtual scrolling. Multi-megabyte files render instantly without blocking the browser. Most alternatives load the entire DOM and choke on large files.
Element Picker & Secondary Viewer
Found JSON embedded in an HTML page? Activate the element picker, hover to highlight elements, and click to extract JSON — even from inside Shadow DOM. Extracted JSON opens in a floating iframe modal with the full viewer.
Privacy-First Architecture
- Static permissions are minimal (
storage,contextMenus,scripting,activeTab,tabs). - The
<all_urls>permission is only requested at runtime if you enable auto-detection. - Zero telemetry. Zero tracking. No data ever leaves your browser.
When to Choose Another Extension
Best JSON Viewer is focused on developer ergonomics and privacy. It may not be the right fit if:
- You need Chrome DevTools integration (DevTools extensions are a different category).
- You want a standalone app rather than a content-script viewer.
- You prefer the simplest possible formatter with no bells and whistles — JSON Formatter is a great minimal option.
The Bottom Line
If you work with JSON regularly and want a viewer that handles large files, offers multiple views, supports querying, and respects your privacy — Best JSON Viewer is the most feature-complete option available.