JSON View

Raw JSON
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Formatted Result
JSON Viewer & Formatter — Beautify, Validate, and Minify
JSON Viewer helps you format, validate, minify, and escape JSON quickly. Paste raw JSON to see a beautifully indented, color-highlighted result, or compress it to a single line — with structure errors flagged instantly.
Features & Usage Tips
Format, validate, compress, and escape JSON instantly in your browser, with clear error feedback that pinpoints invalid input.
JSON Formatting Essentials
JSON (JavaScript Object Notation) is a lightweight data-interchange format. Formatting with indentation makes nested structures readable, while minification removes whitespace to reduce payload size — both are essential in daily development.
  • Format: Indent and align keys for readability; character and line counts update live.
  • Minify: Compress JSON to a single line — ideal for API request bodies or storage.
  • Validate & Escape: Invalid JSON shows the exact error position; escape mode converts quotes and newlines into \u / \n sequences for embedding in strings.
Use Cases
🔍 API Debugging: Paste a response body from Postman or the browser to inspect nested structures at a glance.
📦 Config Files: Read and edit package.json, tsconfig.json, or other JSON configs with proper indentation.
🔐 JWT Payload Inspection: Paste the middle segment of a JWT to pretty-print the payload claims.
🧹 Data Cleanup: Minify bulky JSON before storing it in a database or sending it over the wire.
Privacy & Security
This tool runs entirely in your browser. All formatting and validation happen locally on your device — your JSON is never sent to any server.