| What it does | Transform JSON into Visual Graphs
| Fast, browser-based JSON viewer, formatter, validator and converter that runs entirely client-side
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| Pricing model | Freemium
| Free
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| Pricing | 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
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| Key features | - 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
| - View JSON in tree, code, and text modes
- Format and beautify unreadable JSON
- Validate JSON and catch syntax errors
- Minify JSON to reduce payload size
- Convert JSON to CSV, Excel, YAML, and XML
- Decode JWT tokens and inspect claims
- Generate UUIDs and encode or decode Base64 data
- Compare and diff JSON structures
- Sort, search and transform JSON data
- All processing runs 100% client-side in browser
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| What makes it different | - 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
| - Privacy-first: all processing runs client-side with no server uploads, storage or logging
- No installation or signup required; works directly in modern web browsers
- Side-by-side input and output view for easy comparison and debugging
- Comprehensive toolset covering viewing, formatting, validation, conversion and comparison in one place
- Works on desktop and mobile browsers without any setup time
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 18 ▼ −1 (down) since last check | 9 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 9 | 7 |
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| Citation Flow (Majestic) | 26 | 30 |
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| Referring domains (Majestic) | 130 | 48 |
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JSON Viewer
JSONViewerTool