JSON Hover Formatter

Hover over JSON text to format it in a modal or inline.

JSON Hover Formatter is a lightweight, high-performance developer tool that makes reading raw JSON strings on any webpage effortless. No more copying and pasting into external sites just to see what a data blob contains. Key Features: Instant Hover Preview: Simply hover over any JSON structure (objects or arrays) to see a syntax-highlighted preview in a sleek modal. Inline Replacement: One click to replace raw, unreadable text with a formatted and colored version directly in the page layout. Smart Detection: Automatically identifies JSON blocks even when they are embedded inside table cells or text-heavy dashboards. Developer Friendly: Works perfectly with tools like MongoDB Compass, AWS Console, or custom internal logs where JSON is often displayed as a single line. Privacy Focused: All formatting happens locally in your browser. Your data never leaves your computer. Stop squinting at raw strings—clean up your data view with JSON Hover Formatter.