JSON Spark
Extension Actions
- Live on Store
The JSON tool you can trust. Fast, beautiful, private.
A modern, feature-rich JSON viewer Chrome extension
Features
🌳 Six Powerful Views
View > Description
Tree > Collapsible tree with search, expand/collapse all, level control
Raw > Syntax highlighted JSON with line numbers, prettify/minify
Table > Arrays of objects rendered as sortable tables
Diff > Side-by-side comparison with change highlighting
Edit > Full-featured editor with validation, bracket matching, folding
Saved > Bookmark JSONs locally for quick access
✨ Key Features
Context Menu: Copy Key, Copy Path (JSONPath), Copy Value, Copy Formatted
Search: Real-time search with match navigation (⌘F)
Sort Keys: 3-state sorting — Original → A-Z → Z-A
Filter to Node: Focus on any subtree
Themes: Dark / Light / System auto-detection
Keyboard Shortcuts: Full keyboard navigation (⌥1-6 for views)
URLs & Emails: Clickable links detected automatically
Download: Export formatted JSON as .json file
✏️ Edit Mode Pro
Indent Toggle: 2 spaces → 4 spaces → Tab (auto re-formats)
Word Wrap: Toggle line wrapping
Font Size: Adjustable (10-24px)
Bracket Matching: Highlights matching {}[]
Format on Paste: Auto-prettifies valid JSON
Fold/Unfold: Collapse objects and arrays
Cursor Position: Live Ln/Col display
Open Source!