Format, validate, convert, and transform JSON data. 22 tools — all free, browser-based, no sign-up required.
JSON Formatter
Format, minify, validate, and explore JSON with tree view, JSONPath queries, and multi-format export — the complete JSON workbench.
JSON Compare
Compare two JSON files side by side with real-time diff highlighting.
CSV to JSON Converter
Convert CSV data to JSON format with support for headers and custom delimiters.
YAML to JSON Converter
Convert YAML data to JSON format with support for complex nested structures.
JSON Validator
Validate JSON data and detect syntax errors with detailed error messages and line numbers.
JSON to TOML Converter
Convert JSON data to TOML format for configuration files.
JSON Schema Generator
Generate JSON Schema (draft-07) from sample JSON data automatically.
HTML ↔ JSON Converter
Convert HTML markup to structured JSON and back.
JSON to CSV Converter
Convert JSON arrays to CSV format with customizable delimiter, headers, and nested object flattening.
JSON Query Tool
Extract values from JSON using dot-notation and bracket-notation paths.
JSON to TypeScript
Convert JSON to TypeScript interfaces instantly. Generate typed interfaces from JSON samples for type-safe development.
JSON to Python
Convert JSON to Python dataclasses instantly. Generate typed Python classes from JSON samples for type-safe data handling.
JSON to Java
Convert JSON to Java POJO classes instantly. Generate Java records or classes with getters and fields from JSON samples.
JSON to C#
Convert JSON to C# classes instantly. Generate C# POCO classes with properties and attributes from JSON samples.
JSON to Go
Convert JSON to Go struct types instantly. Generate Go structs with JSON tags from JSON samples for Go development.
JSON to GraphQL
Convert JSON to GraphQL schema types instantly. Generate GraphQL type definitions from JSON samples for your API schema.
JSON to Rust
Convert JSON to Rust structs instantly. Generate type-safe Rust structs with Serde derive macros from JSON samples.
JSON to Swift
Convert JSON to Swift Codable structs instantly. Generate type-safe Swift structs with Codable conformance from JSON samples.
JSON → XML Converter
Convert between JSON and XML formats bidirectionally.
JSON Path Tester
Test JSONPath expressions against JSON data and see matched results.
JSON Minifier & Compressor
Minify JSON by removing all whitespace, indentation, and line breaks to create compact payloads.
JSON Node Value Extractor
Extract all values of a specific key from JSON data. Enter a key name and get all matching values in a clean list for copy or download.
All 22 tools in this collection are completely free, run 100% in your browser, and require no sign-up or data uploads. Your privacy is guaranteed — every tool processes data locally on your device. Whether you are a developer, designer, content creator, or student, these tools are designed to save you time and get the job done.