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Avorqin

JSON Validator

Validate JSON syntax and structure online. Get precise error messages with line and column numbers to fix issues fast.

About JSON Validator

The JSON Validator checks your JSON documents for syntax errors, missing commas, unmatched brackets, and invalid data types. It provides clear error messages with exact positions, helping you debug configuration files, API payloads, and data exports quickly and accurately.

How to Use JSON Validator

  1. Paste your JSON into the input field.
  2. Click 'Validate JSON' to run the syntax check.
  3. Review any error messages with line and column details.
  4. Fix the errors and re-validate until the JSON is valid.

Frequently Asked Questions

What errors does the validator catch?

It catches syntax errors such as trailing commas, unquoted keys, unmatched braces, invalid escape sequences, and incorrect data types.

Does it validate against a schema?

This tool validates syntax only. For schema validation (JSON Schema), use a dedicated schema validator.

Is validation performed locally?

Yes. All validation runs in your browser. No data is transmitted externally.