DevTools360

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Paste or type JSON below. Format, minify, validate, and inspect in real time. 🔒 Privacy First: All processing happens locally in your browser. Your data is never saved, stored, or transmitted to any server.

Features

  • Format and minify JSON
  • Validate JSON with Monaco highlighting
  • Interactive tree view
  • JSONPath testing
  • Large JSON handling

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate.

How does this tool handle large JSON?

The tool detects large payloads, chunks the input, and delays heavy rendering to keep the interface responsive.

What is a JSON Viewer?

A JSON viewer helps you inspect, format, and validate JSON data so it is easy to read and debug. DevTools360 turns raw JSON into a clean, readable layout with syntax highlighting, validation feedback, and a tree view for complex objects.

Format, Validate, and Minify JSON

  • Formatter: Pretty-print JSON with consistent indentation and spacing.
  • Validator: Catch syntax errors with clear error locations.
  • Minifier: Remove whitespace for smaller payloads and faster transfers.

Tree View and JSONPath Queries

Large or nested JSON is easier to explore with a collapsible tree view. Use JSONPath queries to pinpoint values and quickly verify data structures without manual searching.

Common Use Cases

  • API debugging: Inspect API responses and verify payload shapes.
  • Data cleanup: Fix malformed JSON before saving or importing.
  • Documentation: Share formatted JSON in tickets or docs.
  • Testing: Validate fixtures and sample data sets.

Privacy and Offline Use

All JSON processing happens locally in your browser. No uploads, no tracking, and it keeps working even when you are offline.

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