About JSON Viewer
Format, validate, beautify, and inspect JSON payloads with line numbers, syntax error detection, 1-click dot-notation path locator, automatic JSON repair, and TypeScript interface generator.
Key Capabilities & Features
- Syntax validation reporting exact error messages and line character locations
- 2-space standard indentation beautification for clean, readable payloads
- Minification removing whitespace and line breaks for production APIs
- Automatic JSON Repair button fixing unquoted keys, trailing commas, and single quotes
- Interactive collapsible tree toggle with dot-notation path finder (e.g. meta.totalUsers)
- Generate production-ready TypeScript interfaces from JSON payloads
- Bidirectional JSON to XML conversion with automatic element nesting
- One-click copy to clipboard with instant feedback
How to Use JSON Viewer
1
Paste JSON
Paste raw, minified, or broken JSON data into the editor.
2
Format or Repair
Click 'Beautify' to indent, 'Repair JSON' to fix syntax errors, or 'Minify' to compress.
3
Explore & Copy
Switch between Code and Tree view or generate TypeScript interfaces.
Privacy & In-Browser Execution Guarantee
100% client-side privacy. All calculations, parsing, and charting execute locally in your browser with zero server uploads.
Frequently Asked Questions
Does this tool upload my JSON data?
No. All parsing, repairing, and validation happen 100% locally in your web browser.
Can it fix broken JSON with trailing commas or single quotes?
Yes! Click the 'Auto Repair' button to automatically fix unquoted keys, single quotes, and trailing commas.
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