ZenJSON – Minimal JSON Formatter

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

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