JSON Spark

by jarp_dev · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

The JSON tool you can trust. Fast, beautiful, private.

Users

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#273K

#227K among extensions

Version

2.0.1

updated 22 Mar 2026

Users

monthly, 8 months

Latest, 16 Oct 2026: 4 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JSON Spark

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!