Validators
JSON Validator
Validate JSON syntax and structure to identify errors quickly. Get precise diagnostics with line and column highlighting to fix malformed JSON and ensure your data follows standard specifications.
Validate JSON syntax and structure to identify errors quickly. Get precise diagnostics with line and column highlighting to fix malformed JSON and ensure your data follows standard specifications.
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Tip
Clicking on an error message will automatically scroll the editor to the exact line where the issue occurred.
Best Practice
Always use double quotes for both keys and values to stay compliant with the JSON standard.
{} or square brackets [] from manual edits.Did You Know?
JSON is a language-independent data format, making it ideal for API communication between systems.
Q: Why is my JSON invalid even if it works in my JavaScript code? A: JavaScript is more lenient (allowing comments and single quotes), while the official JSON standard is strictly typed and requires double quotes.
Q: How can I find the specific line causing an error? A: The validator provides exact line and column numbers. You can also click the error message to automatically scroll to that line in the editor.
Q: Does this tool validate against custom JSON schemas? A: This tool focuses on syntax validation to ensure your code is well-formed according to the global JSON specification.
Tip
Format your JSON before validating it to make identifying structural errors much easier.