Lightweight JSON formatter for Chrome. Features include collapsible trees, history records, and side-by-side comparison.
Users
91
+17 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#87K
#73K among extensions
Version
3.0
updated 5 Jan 2026
Users
monthly, 3 years
Latest, 16 Oct 2026:91 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
Latest, 16 Oct 2026:1 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 Format - Easy & Powerful Viewer
# JSON Format - Easy & Powerful Viewer
A lightweight, high-performance, and feature-rich JSON formatter extension for Chrome, fully compatible with Manifest V3.
This extension automatically detects raw JSON content in your browser and presents it in a beautifully formatted, collapsible tree view. It helps developers debug and view JSON data efficiently.
## Key Features
- Auto-Formatting: Automatically formats JSON responses into a readable tree structure.
- JSON Editor: A dedicated page (editor.html) for manual JSON input and formatting.
- Keyboard Shortcuts: Press Alt + J to quickly open the JSON Editor from any page.
- Collapsible Trees: Easily expand and collapse JSON objects and arrays. Click the -// icons or the {...} placeholders to toggle visibility.
- Syntax Highlighting: Color-coded output for keys, strings, numbers, booleans, and null values.
- Floating Toolbar: Quick actions at the top right:
- Parsed/Raw View: Toggle between formatted tree and original text.
- Expand/Collapse All: One-click to expand or collapse all nodes.
- Copy: Copy formatted or raw JSON to clipboard.
- History Records: Automatically saves your recent JSON views. Access them from the sidebar to revisit previous data.
- Diff Comparison: Compare the current JSON with any historical record side-by-side.
- Synchronized Scrolling: Both sides scroll together for easier comparison.
- Aligned View: Keys are aligned for easy comparison.
- Color Coding: Visual indicators for Added (Green), Removed (Red), and Changed (Yellow) fields.
- Synchronized Collapsing: Collapsing a node in the comparison view keeps the structure aligned.
- Clickable URLs: Automatically detects URLs in strings and converts them into clickable links.
- History Management:
- Collapsible sidebar panel to save space.
- View timestamps and source URLs for each record.
- Resize the panel by dragging.
- Clear history with a single click.
Growth
Window
Users
Change
Ratings
Rating
7 days
+6
+7.1%
0
0.00
30 days
+17
+23.0%
0
0.00
6 months
+50
+122.0%
0
0.00
1 year
+64
+237.0%
+1
+5.00
Chrome Web Store search rankings
Where JSON Format - Easy & Powerful Viewer appears when people search the store, with the 30 day change