JSON Tools

Work with JSON data efficiently: format, validate, compare, visualize tree structures, and convert JSON with powerful browser-based tools.

11 tools available

Data Tools 8

YAML-JSON Converter

Convert YAML to JSON and JSON to YAML instantly. Free online tool with formatting options. Process data securely in your browser.

Free online JSON tree viewer and visualizer. Explore JSON data with interactive collapsible tree structure, syntax highlighting, search, and fullscreen mode. Perfect for analyzing complex JSON APIs, debugging nested data, and understanding JSON structures.

CSV-SQL Converter

Convert CSV to SQL INSERT, CREATE TABLE statements or back to CSV in your browser. Auto-detect data types, custom delimiters, MySQL Postgres SQLite friendly.

XML-JSON Converter

Convert between XML and JSON formats instantly. Free bidirectional converter supporting custom formatting, attributes, and nested structures.

JSON Path Finder

Free online JSON Path query tool. Find, filter, and extract data from JSON using JSONPath expressions. Perfect for API testing, data extraction, and JSON analysis.

JSON Diff Checker

Compare two JSON objects line by line. Highlights added, removed, and modified keys with full path navigation. Works on arrays, nested objects, type changes.

JSON to CSV

Convert JSON to CSV format instantly. Upload JSON arrays or objects, customize delimiter and output, download as CSV without uploading data.

CSV to JSON

Convert CSV files to JSON format instantly. Upload CSV, customize output format, and download as JSON array or objects without uploading data.

Developer Tools 3

Generators 1

Manifest Generator

Create a Web App Manifest (manifest.json) for Progressive Web Apps: name, icons, theme color, display mode, orientation, shortcuts. Standards-compliant.

Utilities 2

JSON to TypeScript

Free online JSON to TypeScript converter. Paste any JSON, get strict interfaces with nested objects, arrays, and string-literal unions. Private, in-browser.

OpenAPI Spec Validator

Paste an OpenAPI 3.x JSON or YAML spec, lint it, summarize endpoints, and catch missing 401/403, undeclared params, and other common issues. Free, browser-only.