How to fix an invalid JSON file?

Fixing invalid JSON starts with identifying the specific errors. Use our JSON Editor at jsonconsole.com/json-editor which highlights errors and provides detailed messages about the problem and its location. Common fixes include: replacing single quotes with double quotes, adding missing commas between elements, removing trailing commas before closing brackets, matching all opening and closing brackets, escaping special characters with backslashes, and ensuring keys are quoted strings. The editor shows exactly where errors occur with line numbers and descriptions. Start from the first error and work sequentially, as one error often cascades. Check quote matching carefully—missing or extra quotes are common issues. Verify all brackets and braces match properly. Use our JSON Formatter after fixing to ensure proper structure. The combination of validation and formatting tools makes fixing JSON straightforward, preventing you from introducing new errors while correcting existing ones.