All JSON Tools

36 free tools to validate, format, convert, and transform JSON data. No signup required.

Open Validator Learn JSON

Validate & Format

Check syntax, format, and clean up your JSON

JSON Validator

Validate and format JSON with error highlighting

Pretty Print

Format JSON with customizable indentation

Minify

Compress JSON by removing whitespace

Sort Keys

Alphabetically sort object keys

Escape

Escape JSON for embedding in strings

Unescape

Unescape stringified JSON

Stringify

Convert to escaped string format

View & Query

Explore and extract data from JSON

Tree Viewer

Interactive collapsible tree visualization

Table Viewer

Display arrays as sortable tables

JSON Diff

Compare two JSON objects side-by-side

JSON Path

Query data using JSONPath expressions

Flatten

Convert nested JSON to dot notation

Data Converters

Convert between JSON and other formats

JSON to CSV

Convert JSON arrays to CSV format

CSV to JSON

Parse CSV files into JSON

JSON to Excel

Export JSON to Excel spreadsheet

Excel to JSON

Import Excel data as JSON

JSON to YAML

Convert JSON to YAML format

YAML to JSON

Parse YAML into JSON

JSON to XML

Transform JSON to XML

XML to JSON

Parse XML into JSON structure

JSON to SQL

Generate SQL INSERT statements

SQL to JSON

Convert SQL tables to JSON

JSON to Markdown

Generate Markdown tables from JSON

Code Generators

Generate type definitions and classes from JSON

JSON to TypeScript

Generate TypeScript interfaces

JSON to Python

Generate Python dataclasses

JSON to Java

Generate Java POJO classes

JSON to C#

Generate C# classes

JSON to Go

Generate Go structs

JSON to Kotlin

Generate Kotlin data classes

JSON to Swift

Generate Swift Codable structs

JSON to Rust

Generate Rust structs with serde

JSON to PHP

Generate PHP classes

Schema Tools

Validate and generate JSON Schema

Schema Validator

Validate JSON against JSON Schema

Schema Generator

Auto-generate schema from data

Encoding Tools

Encode and decode JSON data

Base64 Encode/Decode

Encode or decode JSON as Base64

JWT Decoder

Decode and inspect JWT tokens

Need JSON data to test with?

Browse our collection of free JSON datasets for testing and learning.

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