Free online tool for JSON merge, compare, validate and more
Transform JSON into Visual Graphs
Stage
Not given
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
Completely free, no login required, no subscription, no hidden fees.
Free plan includes upload and process small files, Chrome/VS Code extension, unlimited downloads, and visualization with tables and charts. Pro plan costs $2.49/month (monthly) or is available yearly, includes ad-free experience, compare and analyze data, edit JSON from diagrams, unlimited diagrams
Key features
Merge JSON files with conflict resolution algorithms
Handle nested structures and complex objects with precision
Visual side-by-side diff tool
Instant online processing
No login required
Client-side data processing for security
Handle large JSON files efficiently
Compare different JSON files
Validate JSON against schemas
Interactive tree view with expand/collapse and color-coded syntax highlighting
Side-by-side JSON comparison with visual diff viewer
AI-powered JSON diagram generation from natural language
Convert JSON data into dynamic charts and graphs
Chrome extension for instant visualization on any webpage
Multi-format support for YAML, XML, CSV, TOML, TOON and Mermaid
REST API client with diagram visualization of responses
Customizable themes and multi-node color customization
Export diagrams as images and download graphs
What makes it different
100% free with no login, subscription or hidden fees
Data never stored after processing with client-side security
Handles complex nested structures and arrays with precision
Visual intuitive interface with side-by-side comparison
Instant processing without long wait times
Supports 6+ data formats including JSON, YAML, XML, CSV, TOML and TOON in one tool
AI-powered assistant to generate and transform JSON using natural language commands
Chrome and VS Code extensions for seamless workflow integration
Privacy-first design with data stored only upon manual upload
Native mobile apps for Android and iOS for on-the-go visualization
JSON Merge
JSON Viewer