JSON Formatter & Validator
Prettify, minify, inspect, and validate JSON data directly in your browser with real-time error detection. 100% private.
How ecsot JSON Formatter Works
Paste or Upload
Paste your raw JSON text, drag & drop a .json file, or load one of our ready sample presets.
Instant Syntax Validation
Your browser inspects structure in real-time, catching missing commas, quotes, or brackets.
Format or Minify
Choose your preferred indentation (2 spaces, 4 spaces, tab) or compress into a single line.
Copy or Export
Copy clean formatted JSON to your clipboard or download it as a .json file directly.
Tips for Working with JSON
- •Double Quotes are Mandatory: JSON specification requires double quotes (") around all property names and string values. Single quotes are invalid.
- •No Trailing Commas: Trailing commas after the last element in an object or array cause syntax errors in strict JSON parsers.
- •100% Client-Side Privacy: All JSON formatting, minification, and parsing happen directly inside your browser memory with zero network uploads.
- •Minification for Production: Minify mode strips whitespace and line breaks, reducing payload size for faster network transfer and storage.
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