JSON Formatter & Query

Format. Query.
Understand JSON.

A browser extension that auto-formats JSON responses into a beautiful,
interactive tree view with a built-in query engine.

JSON Formatter & Query is a free, open-source Chrome extension by uax.io that auto-detects and beautifies JSON responses in any browser tab. It features a collapsible tree view with syntax highlighting, dark/light themes, and a powerful query engine supporting Path notation, SQL (SELECT/WHERE/ORDER BY), and MongoDB-style queries with autosuggest. The extension operates 100% locally — zero network requests, zero tracking, zero data collection.

Add to ChromeTry with Sample JSON
v1.3Version
3Query Engines
0Data Collected
JSON Formatter & Query in action — tree view with query panel
Features

Everything you need
for JSON.

🌳

Tree View

Collapsible, syntax-highlighted tree with key counts, type colors, and depth indicators.

🔍

Path Query

Navigate JSON with dot notation — config.database.host, users[0].email, and more.

🗃️

SQL Query

Query JSON arrays with SQL syntax — SELECT, WHERE, ORDER BY, LIMIT.

🍃

MongoDB Query

Filter with MongoDB-style queries — $gt, $in, $regex, and nested conditions.

🎨

Dark & Light

Beautiful dark and light themes. Remembers your preference.

🔒

100% Private

Zero network requests. All processing happens locally in your browser.

Make JSON readable.

Free, open-source, and privacy-first. Install in one click.

Add to Chrome — Free
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