data_object JSON Formatter

About the JSON Formatter

Format, validate, and beautify JSON data with our free online JSON formatter. Convert JSON to YAML or CSV, import CSV data to JSON, query paths, and explore data structure with our interactive tree view. Perfect for developers who need to quickly debug, analyze, or clean up JSON data.

Features

• Format / Beautify — Add proper indentation and line breaks
• Minify — Remove whitespace to reduce file size
• Validate — Check if your JSON is valid with detailed error messages
• JSON to YAML — Convert JSON to YAML format instantly
• JSON to CSV — Export JSON arrays to CSV with automatic header detection
• CSV to JSON — Import CSV data and convert it to JSON format
• Generate JSON Schema — Automatically infer JSON Schema from sample data
• JSON Path Finder — Query and extract values using JSONPath syntax
• Sort Keys — Alphabetically sort object keys
• Tree View — Interactive visual representation of JSON structure
• Syntax Highlighting — Color-coded output for readability

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that's easy for humans to read and write, and easy for machines to parse and generate. It's widely used in web APIs, configuration files, and data storage.

JSON vs YAML

YAML (YAML Ain't Markup Language) is a human-friendly data serialization format. While JSON uses braces and brackets, YAML uses indentation for structure, making it more readable for configuration files. Our converter makes it easy to switch between formats.

JSONPath Syntax

• $ — Root object
• $.property — Direct property access
• $.array[0] — Array index access
• $.nested.deep.value — Nested property access
• $.items[*].name — All items' name property

JSON to CSV Conversion

Convert JSON arrays of objects to CSV format for use in spreadsheets. The converter automatically:

• Extracts all unique keys as column headers
• Flattens nested objects using dot notation (e.g., address.city)
• Handles arrays by converting them to JSON strings
• Properly escapes values containing commas, quotes, or newlines

CSV to JSON Conversion

Import CSV data and convert it to JSON format. The converter supports:

• Multiple delimiters: comma, semicolon, tab, or pipe
• Optional header row detection
• Automatic type inference (numbers, booleans, null)
• Quoted values with embedded commas or newlines
• File upload for large CSV files

JSON Schema Generation

Automatically generate a JSON Schema from your sample JSON data. The schema generator:

• Infers types for all values (string, number, integer, boolean, null, array, object)
• Detects string formats (date, date-time, email, URI, UUID, IPv4)
• Merges array item schemas intelligently
• Supports multiple JSON Schema drafts (Draft-04, Draft-06, Draft-07, 2020-12)
• Optionally includes required fields, examples, and additional properties
• Displays statistics about objects, arrays, and properties found

Generated schemas can be used for API documentation, form validation, code generation, and data modeling.

Privacy

All formatting and conversion is performed entirely in your browser. Your JSON data is never sent to any server.