Developer utility · Free

JSON Formatter

Paste JSON and format it with 2- or 4-space indentation. Invalid JSON is reported by the browser parser.

Processing happens in your browser for this tool. Follow the example format shown above when a calculator or generator needs multiple values.

What is JSON Formatter?

Format and pretty-print JSON in your browser with configurable indentation and clear validation feedback. This utility is designed for quick, practical use without requiring an account.

Common uses

  • Read API responses
  • Inspect configuration files
  • Clean minified JSON
  • Prepare readable API payloads

Privacy and processing

V1 utilities in this cluster process input in the browser where practical. The application does not need to transmit the tool input to Software Engine for the core transformation.

Related utilities

JSON ValidatorValidate JSON syntax in your browser with parser error details including line and column when available.JSON MinifierRemove unnecessary JSON whitespace while preserving valid JSON structure.JSON-LD GeneratorGenerate basic JSON-LD for common WebPage, Article and Organization use cases.Text Diff CheckerCompare two text blocks by line, word or character in your browser with optional case and whitespace ignoring.