JSON Validator & Interactive Tree Viewer
JSON → Validated Tree
Validate JSON syntax with line-by-line error messages and explore data in an interactive collapsible tree view.
About this tool
About JSON Validator & Interactive Tree Viewer
JSON Validator & Interactive Tree Viewer is a free, browser-based tool that lets you validate JSON syntax with line-by-line error messages and explore data in an interactive collapsible tree view. It supports JSON → Validated Tree. Everything runs locally on your device, so your files are never uploaded to a server. There's no sign-up, no watermark, and no limit — just open JSON Validator & Interactive Tree Viewer, add your input, and get results instantly.
How to use JSON Validator & Interactive Tree Viewer
1
Paste JSON
Input raw JSON string.
2
Inspect Tree
Explore collapsible interactive JSON nodes.
Key features
Interactive Tree
Expand and collapse JSON nodes effortlessly.
100% Private
JSON Validator & Interactive Tree Viewer processes your data locally in the browser. Nothing is uploaded, tracked, or stored u2014 your files never leave your device.
Completely Free
Use JSON Validator & Interactive Tree Viewer as much as you want with no fees, no watermarks, and no hidden limits.
No Installation
JSON Validator & Interactive Tree Viewer runs in any modern browser. There's nothing to download, install, or configure.
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