Formats JSON documents in the browser. Add #raw to URL to see raw JSON.
Users
5
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#246K
#206K among extensions
Version
1.0
updated 3 Apr 2026
Users
monthly, 6 months
Latest, 16 Oct 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 6 months
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 Simple JSON Formatter
A lightweight, zero-permission JSON formatter for Chrome.
When you open a URL that returns JSON (application/json, text/json, or text/plain), the extension automatically formats it into a readable, syntax-highlighted tree view.
Features:
- Syntax highlighting for keys, strings, numbers, booleans, and nulls
- Collapsible objects and arrays — click the arrow to expand/collapse
- Copy any value — hover a line and click the copy icon to grab that field
- Clickable URLs — string values that look like links become clickable
- Light and dark mode — follows your system preference automatically
- Raw mode — add #raw to any URL to bypass formatting and see the original response
- Zero permissions — no background scripts, no storage access, no network interception
Open source: https://github.com/mehulmpt/simple-json-formatter