JSON Formatter & Validator

Validate and format JSON with clear error messages and line/column guidance.

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How to use this tool

  1. Paste your JSON in JSON input.
  2. Choose Mode: Pretty (readable) or Minify (compact).
  3. Pick Indent and optional Sort keys.
  4. Keep Unicode enabled if you want Arabic/French characters readable.
  5. Click Format & Validate. If invalid, use the line/column + hint to fix it.
Reset

Output

Tip: Fix the character near the reported line, or the previous line, then try again.
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