JSON Validator – Check Your JSON for Errors
Validate and fix JSON syntax online for free
A JSON Validator checks whether your JSON is syntactically correct. Common errors include trailing commas, missing brackets, unquoted keys, and mismatched braces. Our validator highlights exactly where the error is so you can fix it quickly.
Frequently Asked Questions
What is JSON validation?
JSON validation is the process of checking if a string of characters conforms to the syntax rules of JSON. It ensures that data can be correctly interpreted by other programs.
What are common JSON errors?
Common errors include trailing commas, unquoted property names, single quotes instead of double quotes, and mismatched brackets.
How do I fix "Unexpected token" in JSON?
This error usually means there's a character in the wrong place. Our validator will highlight the specific line number to help you fix it.