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JSON Validator

Check JSON syntax and catch invalid structures quickly for API testing, config files, and browser-based debugging.

How to use it

Paste your JSON in the tool panel on the left.
Click "Validate" to check syntax and structure.
Copy the validation status or fix issues from the error message.

Practical example

Input: {"name":"Ada"}

Output: Valid JSON structure

Frequently asked questions

What kind of errors does it catch?It catches malformed brackets, missing commas, bad quotes, and other invalid JSON syntax.

Can I use it on mobile?Yes. The layout is responsive and works well on small screens.

Related tools

JSON Beautifier JSON Minifier Text Difference Checker

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