JSON Validator PRO - Syntax Checker
Operating Instructions
Input
Paste your JSON code into the left editor panel.
Scan
The system automatically scans for syntax errors as you type.
Fix
Read the Debug Console to locate and correct issues.
Error Log Example
{
"id": 1,
"user": "Admin",
}
ERROR: Unexpected token } in JSON at position 32.
HINT: Remove trailing comma.
System Capabilities
Real-Time: Instant feedback loop speeds up debugging.
Private: Code validation happens locally in your browser.
About JSON Validator PRO
JSON Validator PRO is an essential quality assurance tool for developers. JSON (JavaScript Object Notation) is strict; a single missing quote or extra comma can break an entire application. This tool acts as a parser, reading your code and identifying the exact location of syntax errors. It ensures that the data you send to APIs or save in configurations is perfectly valid and machine-readable.
Related Technical Articles
Common JSON Errors
Why trailing commas and single quotes are the most frequent syntax killers.
JSON vs JS Objects
Understanding the strict differences between a JS object literal and valid JSON.