JSON Tools

JSON Formatter & Minifier

Online JSON formatting, minification, and validation tool with JSON beautification, key sorting, syntax checking, and error line and column detection. Suppor......

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JSON Schema Validator

Online JSON Schema validation tool: validates JSON data against JSON Schema rules, checking data types, required fields, property structures, array items, en......

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JSON to CSV

Online JSON to CSV tool: select data from a JSON object or array and convert it to CSV. Supports automatic detection, top-level data, and JSONPath-defined da......

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JSON Schema Generator

Online JSON Schema generator: automatically infers field structures, data types, and nested relationships from JSON data and generates a JSON Schema for API ......

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CSV to JSON

Online CSV to JSON tool: converts CSV text or local CSV files into JSON. Supports automatic detection or manual selection of headers, data types, and delimit......

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JSONPath Query

Online JSONPath query tool: extract, locate, and filter JSON data with path expressions. Supports the root node $, property access .key, array indexes [0], w......

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JSON Merge

Online JSON Merge tool: deep-merges JSON A and JSON B into one result, preserving unique fields and recursively merging nested objects. Duplicate fields can ......

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JSON Diff

Online JSON Diff tool: parses two JSON documents into objects and compares them recursively, showing only added fields, removed fields, changed values, and t......

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Online JSON Tools

This collection of JSON tools is designed for developers, testers, and anyone working with structured data. It provides common tools for formatting, minifying, validating, sorting, comparing JSON, working with JSON Schema, and converting between JSON and CSV. Whether you are working with API responses, project configuration files, or JSON data that needs to be compared or converted, you can process it directly in your browser.

What can JSON tools do?

  • JSON formatting: Converts compact or poorly structured JSON into a clear format with indentation and line breaks for easier reading and debugging.
  • JSON minification: Removes unnecessary whitespace, line breaks, and indentation to produce more compact JSON text.
  • JSON validation: Checks whether JSON syntax is valid and helps identify common structural errors.
  • JSON sorting: Sorts object keys to make fields easier to find, configurations easier to organize, and content easier to compare.
  • JSON Diff: Compares the fields and structures of two JSON documents to quickly identify added, removed, or modified content.
  • JSON Schema: Generates a schema from JSON data or validates JSON data against a schema.
  • JSON and CSV conversion: Converts between JSON and CSV for structured data processing and exchange.

What are JSON tools used for?

JSON tools are commonly used for API debugging, frontend and backend development, configuration file analysis, log inspection, data exchange, test data preparation, and software development. When an API returns large amounts of minified JSON, formatting can make the field hierarchy easier to understand; when the data structure needs to be checked, JSON validation or JSON Schema can be used; when different versions need to be compared, JSON Diff can highlight the differences.

What is the difference between JSON formatting, minification, and validation?

JSON formatting mainly adds line breaks and indentation to improve readability; JSON minification removes unnecessary whitespace to reduce text size; JSON validation checks whether the JSON text conforms to JSON syntax. Each serves a different purpose and can be used according to the task at hand.

What are JSON Schema and JSON Diff used for?

JSON Schema describes and validates the structure of JSON data, including field types, required fields, and other schema rules. JSON Diff compares two JSON documents to identify differences, making it useful for API version comparisons, configuration checks, and data change analysis.

How is data processed by the JSON tools?

NZTool's JSON tools primarily process data locally in the browser. JSON formatting, minification, validation, and related operations can be performed directly in the current browser without uploading the input data to a server. This makes the tools suitable for working with API responses, configuration files, and test data.