Online JSON Formatter & JSON Viewer

jsonviewerapp is a professional-grade, AI-powered online workspace designed for developers to manage JSON data with ease. Whether you need a JSON beautifier, a robust validator, or a visual data explorer, jsonviewerapp provides all the tools in one unified interface.

Why Use Our JSON Formatter?

Working with nested JSON objects can be challenging. Our tool simplifies this by providing a clean, hierarchical view. Unlike basic JSON formatters, jsonviewerapp uses Gemini AI to detect and fix syntax errors like missing commas or incorrect quotes automatically.

Key Features

How to Format JSON Online

  1. Paste your raw JSON code into the editor.
  2. Our validator will highlight any syntax errors with line and column numbers.
  3. Click 'Format' to beautify the code with your preferred indentation.
  4. Use the 'Tree' or 'Graph' views to explore the structure visually.
  5. Export the result to your local machine as a file.

Frequently Asked Questions

Is this JSON Formatter free?

Yes, jsonviewerapp is a completely free online tool for all developers.

Is my data secure?

Your JSON data is processed locally in your browser. We do not store your private data on our servers.

Can I convert JSON to CSV?

Absolutely. Use our 'Convert' view to transform your JSON objects into flattened CSV files for Excel or Google Sheets.