JSON Formatter

by BlusKris · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Auto-detect and beautify JSON data with syntax highlighting and collapsible tree view

Users

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#215K

#180K among extensions

Version

1.1.0

updated 5 May 2026

Users

monthly, 6 months

Latest, 16 Oct 2026: 8 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 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 Formatter

JSON Formatter automatically detects JSON content in your browser and formats it with a beautiful, interactive tree view. Features: - Auto-detect JSON pages and API responses - Syntax highlighting with Catppuccin color theme - Collapsible/expandable tree nodes - Dark and Light theme toggle (persisted) - Line numbers with hover highlighting - JSON path bar - hover to see path, click to copy - URL detection - clickable links in JSON strings - Expand to depth level (L1 / L2 / L3 / All) - One-click copy formatted JSON - Raw/Formatted view toggle - Popup tool for quick JSON formatting - Multilingual support (English / Chinese) Lightweight, fast, no external requests, no data collection. Pure client-side processing.