Developer ToolSyntax Checker100% Client-Side
JSON Formatter & Validator
Format, beautify, minify, and validate JSON data with line-by-line syntax error detection, copy, and file download.
Indent:
116 chars
How to Use JSON Formatter & Validator
1
Paste JSON
Paste your raw or minified JSON text into the input area.
2
Format or Minify
Click Format (Pretty Print) with 2-space indentation or Minify to compact.
3
Validate & Copy
Check syntax validation indicators, copy output, or download as .json.
Frequently Asked Questions
How are syntax errors highlighted?
Exact error message and approximate line/column numbers are shown when invalid tokens are detected.
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