JSON Tools

JSON (JavaScript Object Notation) is a lightweight, human-readable data interchange format. It's the de facto standard for web APIs, configuration files, and data storage. Nearly every modern programming language supports JSON, making it essential for web developers, backend engineers, data scientists, and anyone working with REST APIs, databases (like MongoDB), or modern applications.

100% Private & Secure. Our JSON Tools operate entirely in your browser (client-side). Your JSON data is never uploaded to any server. All parsing, validation, formatting, and transformation happens locally on your device using JavaScript. This makes it completely safe for sensitive API responses, credentials, configuration files, or proprietary data structures.

Our JSON Tools suite includes 18+ features: JSON Validator with exact error location, JSON Formatter/Beautifier with adjustable indentation, JSON Minifier, Interactive Tree Viewer with expand/collapse, JSON Path Finder with search, JSON Schema Generator (Simple, JSON Schema Draft-07, TypeScript interfaces), JSON Compare/Diff Tool, Format Converters (CSV, XML, YAML, HTML Table, SQL, PHP Array), Key Transformations (sort, rename case, filter, flatten/unflatten), JSON Merge with multiple strategies, Undo/Redo History, and keyboard shortcuts.

Simply paste your JSON into the input area. Our tool provides live validation that checks syntax as you type. If there's an error, it shows the exact line and column number with a human-readable error message. Click the "Validate" tab for detailed analysis including JSON type (Object/Array), key count, nesting depth, and size information.

Yes! Our Convert tab supports 6 output formats: CSV (with delimiter options and nested object flattening), XML (with customizable root/item elements), YAML (perfect for Kubernetes/Docker configs), HTML Table (for quick data visualization), SQL INSERT statements (for database imports), and PHP Array (for Laravel/WordPress developers). Each conversion is instant and downloadable.

The Tree View renders your JSON as an interactive, collapsible hierarchy. Each node shows its key name, data type (Object, Array, String, Number, Boolean, Null), and value. Click any node to expand/collapse it. Double-click any key to copy its full JSON path (like data.users[0].email) to your clipboard—perfect for debugging API responses or writing code to access nested values.

Absolutely! Our Compare/Diff feature performs deep comparison of two JSON objects. It highlights added keys (green), removed keys (red), and modified values (yellow) with their exact paths. This is invaluable for debugging API changes, comparing configuration versions, reviewing data migrations, or auditing JSON document updates.

JSON Schema is a vocabulary that allows you to validate and annotate JSON documents. Our Schema Generator analyzes your JSON and automatically creates a schema describing its structure. Choose from Simple Schema (basic type definitions), JSON Schema Draft-07 (industry-standard with required fields), or TypeScript Interface (for type-safe JavaScript/TypeScript development). Perfect for API documentation and validation rules.

Yes! The Transform tab offers powerful key manipulation: Sort Keys alphabetically (A-Z or Z-A), Rename Keys to different naming conventions (camelCase, snake_case, PascalCase, kebab-case), Filter/Remove specific keys recursively, and Flatten/Unflatten nested objects to dot notation (like user.address.city) and back. All transformations can be previewed before applying.

Yes! Once the page loads, all JSON processing happens locally in your browser using JavaScript. You can disconnect from the internet and continue validating, formatting, comparing, and converting JSON without any interruption. Your editing history is also saved in your browser's LocalStorage for persistence across sessions.

For power users, we support these shortcuts: Ctrl+Enter – Beautify/Format JSON, Ctrl+M – Minify JSON, Ctrl+Z – Undo, Ctrl+Y – Redo, Ctrl+S – Download JSON file, Ctrl+L – Clear input. These work across the tool to speed up your workflow.

Yes! The Merge tab combines two JSON objects using your choice of strategy: Deep Merge (recursively combine nested objects), Shallow Merge (override top-level keys only), or Array Concat (combine arrays instead of replacing). This is perfect for merging configuration files, combining API responses, or creating composite data structures.