August 11, 2026
How to Fix Invalid JSON
How to Fix Invalid JSON
Dealing with invalid JSON can be frustrating. Here is a step-by-step approach to fixing it.
Step 1: Locate the Error
Don't guess where the error is. Paste your data into a JSON Validator. It will pinpoint the exact line and column number where parsing failed.
Step 2: Check for Common Culprits
Once you know the location, look for:
- Missing or extra commas: A trailing comma before a
}or]is illegal. - Unescaped quotes: If you have a string like
"He said "Hello"", it will break. It must be"He said \"Hello\"". - Single quotes: Ensure all keys and string values use double quotes
". - Missing brackets: Ensure every
{has a matching}, and every[has a matching].
Step 3: Format the JSON
Sometimes an error is hard to see because the JSON is minified. Run it through the JSON Formatter. Even if it fails to format, looking at the structured data makes finding the missing bracket much easier.
