Online JSON Viewer, Formatter & Validator – Free Tool
Easily view, edit, validate, and format your JSON data with our free online JSON Viewer. Upload files or paste JSON directly to instantly analyze, prettify, and beautify your JSON structure. Our tool helps developers, data analysts, and programmers detect errors, explore JSON hierarchies, and share clean, readable JSON efficiently.
Whether you need a JSON formatter, JSON editor, or a JSON validator, our tool provides a fast, user-friendly interface with tree view, collapsible nodes, and syntax highlighting. Format and validate JSON in seconds — 100% free, no installation required.
Frequently Asked Questions
What is a JSON Viewer?
A JSON Viewer is an online tool that allows you to view JSON...
What is a JSON Viewer?
A JSON Viewer is an online tool that allows you to view and explore JSON data in a structured and readable format, often with tree view and collapsible nodes.
How do I format JSON using this tool?
Simply paste your JSON into the viewer or upload a JSON file. Click "Format" or "Prettify" to automatically structure your JSON with proper indentation and hierarchy.
Can I validate JSON online?
Yes! Our tool checks your JSON for syntax errors and highlights issues so you can fix them instantly. It works for both simple and complex JSON files.
Is this JSON Viewer free?
Absolutely! You can use our JSON Viewer, Formatter, and Validator completely free of charge, without any signup or installation.