← Useful Tools
🗃️
JSON Formatter & Validator
Paste messy JSON, get it validated and beautifully formatted.
🟢 EasyDifficulty
1 hourTime
Python, JavaScriptLanguages
What you're building
Paste any JSON (even minified or slightly broken), and this tool validates it, pretty-prints it with proper indentation, and shows you exactly what's wrong if it's invalid -- the kind of tool every developer keeps a tab open for.
What you'll unlock 🔓
You'll need
- Basic JavaScript
- A code editor
- A browser
🗺️ Build roadmap
01 Setup
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02 Build the input/output layout
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03 Parse and validate on input
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04 Pretty-print valid JSON
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05 Show helpful error messages
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06 Add a copy button
🔒
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