JSON Formatter & Validator

Online JSON Formatter & Validator

Format messy, minified, or single-line JSON into clean, indented output. Validate JSON syntax with detailed error messages pointing to exactly where the problem is. Escape or unescape JSON strings for embedding in code.

What You Can Do

• Format / Beautify: Turn compressed JSON into readable, indented output with tree structure
• Minify / Compress: Strip all whitespace to minimize file size for production
• Validate: Find syntax errors with exact position information
• Escape: Convert text into a safe JSON string (adds quotes, escapes special chars)
• Unescape: Parse escaped JSON strings back to readable text

How It Works

1. Paste your JSON into the left panel
2. Click Format, Minify, Validate, Escape, or Unescape
3. See the result instantly in the right panel
4. Copy with one click — formatted output shows key count and file size