JSON Validator

Validate JSON syntax and structure instantly

JSON Input

0 chars

Validation Result

What is JSON Validation?
JSON validation checks if your JSON data follows the correct syntax rules. Invalid JSON can break APIs, web applications, and data processing workflows.
Our validator instantly identifies syntax errors, missing brackets, incorrect quotes, and other common JSON formatting issues.
Common JSON Errors
Missing Quotes
Property names must be enclosed in double quotes. Single quotes are not valid in JSON.
Trailing Commas
JSON doesn't allow trailing commas after the last element in objects or arrays.
Unmatched Brackets
Every opening bracket [ {  must have a corresponding closing bracket ] }.
How to Use JSON Validator
1
Paste your JSON data in the input field
2
The validator automatically checks your JSON syntax
3
View validation results and error details if any
MCP Server Available
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