ZenJSON – Minimal JSON Formatter

by Zelatech srl · Developer Tools

Manifest V3 in_app

View in Chrome Web Store Data as of 16 Oct 2026

Format, validate and visualize JSON. 100% offline, no tracking, no data collection.

Users

−1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#265K

#221K among extensions

Version

1.0.0

updated 16 Dec 2025

Users

monthly, 10 months

Latest, 16 Oct 2026: 4 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 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 ZenJSON – Minimal JSON Formatter

ZenJSON is a distraction-free JSON formatter that works 100% offline. FEATURES: • Auto-format on paste – Just paste JSON and it's instantly formatted • Format – Pretty print with 2-space indentation • Minify – Compress to single line • Validate – Syntax check with line/column error positions • Tree View – Collapsible hierarchy with click-to-copy values • History – Access your recent operations • Dark/Light theme – Auto-detects system preference PRO FEATURES: • Large file support (>1MB) • JSON diff comparison • Export to CSV/XML • Unlimited history