Online JSON Tools

All-in-one JSON tool: Format, Minify, Validate, and Convert to PHP, Dart, TS, Go, CSV, YAML, and more.

Convert JSON objects into PHP associative array syntax.

Generate Dart/Flutter class boilerplate with fromJson and toJson methods.

Generate TypeScript interfaces or types from JSON objects.

Generate Go struct definitions with JSON tags.

Convert JSON arrays to CSV format for Excel or spreadsheets.

Convert JSON to YAML and YAML to JSON.

Convert JSON objects to URL query strings.

Visualize JSON as an interactive, collapsible tree.

Convert JSON arrays into simple HTML tables.

Compare two JSON objects and highlight differences (Added, Removed, Modified).

Extract data from JSON using JSONPath expressions.

Escape or unescape JSON strings for use in code or logs.