Developer

Tool · JSON Linter

🔍 JSON Linter

Validate JSON and find syntax errors with line numbers.

Paste JSON to lintPretty-print output

Valid JSON

Formatted output

{
  "name": "ToolHord",
  "tools": 103,
  "active": true
}

Validate, lint, and pretty-print JSON — catches syntax errors with line/column info. 100% client-side.

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