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Utility
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How to Format, Validate, and Beautify JSON Data
Updated 2026-02-18Verified Private
JSON is the language of the web, but it's often delivered as a giant, unreadable block of text. Tulz beautifies it in one click.
Why is this needed?
Debugging a broken API response is impossible without proper indentation and syntax highlighting.
!Step-by-Step Instructions
1
Paste your raw JSON
Copy your data from your code or API and paste it into the editor.
2
Click 'Format' or 'Beautify'
Tulz will instantly indent the code and highlight matching brackets.
3
Check for Errors
If your JSON is invalid, Tulz will highlight the exact line where the error is (like a missing comma).
Pro Tips
- •Use the 'Minify' option if you're trying to save space for a config file or API request.
- •Our tool also supports 'Flattening' JSON structures for easier Excel analysis.
Frequently Asked Questions
Is it safe to paste API keys?
We process JSON locally in your browser. However, as a best practice, never paste production secrets into any online tool.
Can I convert JSON to CSV?
Yes! Use our [JSON to CSV](/tools/json) converter available in the same suite.