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JSON Validator

Validate JSON syntax and identify parsing errors.

Input

Up to 200 KB

Result

Your result will appear here.

 Processed on your device · Content is not stored.


Instructions & limits
How to use
Validate JSON syntax and identify parsing errors.
  1. Enter your content, or select Use example.
  2. Adjust the available options.
  3. Select Run tool, review the result and copy or download it.
When to use this tool
Validate JSON syntax and identify parsing errors.
Example input
{"valid":true}
Limits
Checks syntax, not JSON Schema rules. Input up to 200 KB.
Frequently asked questions
What does this tool do?
Validate JSON syntax and identify parsing errors.
What are the limits?
Checks syntax, not JSON Schema rules. Input up to 200 KB.
Is my data sent to a server?
No. This tool runs in your browser. We do not receive your input or result.
Do I need an account?
No. Use the tools for free without signing in. Favorites and recent tools are stored only in your browser.
Does this work on mobile?
Yes, in a modern browser with Web Crypto support. 
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