JSON Formatter & Validator
Prettify, minify, and validate nested JSON payloads with accurate syntax error line & column highlighting.
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How to use the JSON Formatter & Validator
Paste JSON
Drop your raw JSON string into the editor.
Choose Indentation
Select 2 spaces, 4 spaces, or Minify.
Inspect & Copy
View formatted output or see exact line/column of syntax errors.
Key Features & Accuracy
Pinpoints exact line and column number of missing quotes, commas, or brackets.
Shows payload size in bytes and confirms RFC 8259 compliance.
Frequently Asked Questions
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