Fast, private, and local JSON formatter, validator, and minifier. No data leaves your browser.
Users
3
+2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#304K
#246K among extensions
Version
1.0.0
updated 24 Aug 2026
Users
monthly, 2 months
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 15 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 HavenTools JSON Toolkit
HavenTools JSON Toolkit is a fast, privacy-first JSON utility that runs entirely in your browser. Format, validate, minify, inspect, and copy JSON without uploading your data to a server.
Features
• Format JSON with 2, 4, or 8-space indentation
• Validate JSON and show clear syntax errors
• Minify valid JSON into a compact single line
• Copy formatted or minified JSON to your clipboard
• Keyboard-friendly workflow with Ctrl/Cmd + Enter
• Clear/reset your workspace easily
Privacy-first
All JSON processing happens locally in your browser. Your JSON is not uploaded to HavenTools or any other server. The extension has no account requirement, analytics, advertising, telemetry, or tracking, and works offline.
HavenTools JSON Toolkit is designed for developers, QA engineers, analysts, and anyone who needs a quick local JSON utility.