JSON Input
Validation Result
Why Validate JSON?
Valid JSON is essential for APIs, server configuration, data exchange, and developer tools. This validator catches syntax errors before you submit or parse JSON.
- Detect missing commas, braces, and quotation marks
- Fix JSON issues before API requests or configuration deployments
- Validate arrays and objects quickly in your browser
Once your JSON is valid, continue to JSON Formatter for readability or JSON Minifier to make it compact.
Frequently Asked Questions
How do I fix JSON validation errors?
Read the error message, then correct the issue in the input field. Common problems are missing commas, wrong quotes, and unclosed brackets.
Can this page validate large JSON files?
Yes, but very large files may slow down your browser. For best results, validate JSON in smaller chunks if needed.
Does this validator support JSON5?
This tool checks standard JSON syntax. It does not support JSON5 extensions like comments or unquoted keys.