JSON Validator
Use this JSON validator to check whether your JSON is valid. It parses the input in the browser and reports either the parsed type or the exact parse error.
Example Usage
- Paste a payload before sending it to an API to confirm the JSON is valid.
- Check whether a parsed top-level structure is an object, array, string, or null.
- Use the parse error message to find missing commas or broken quotes quickly.
JSON Validator Explained
A JSON validator checks whether a string can be parsed as valid JSON. This is one of the most common debugging steps in frontend and backend work because a single missing comma or quote can break an entire request or configuration file. This tool parses the input directly in the browser and tells you whether the JSON is valid. If parsing succeeds, it also shows the type of the top-level value, such as object, array, or string. If parsing fails, it shows the error message immediately. That makes it useful for testing request bodies, configuration snippets, and copied data before using it elsewhere.
FAQ
What kinds of JSON values can it validate?
It supports any valid JSON value, including objects, arrays, strings, numbers, booleans, and null.
Will it show where the JSON is broken?
It shows the browser's parse error message, which often points to the location or reason for the failure.
Is this different from the formatter?
Yes. The formatter focuses on readable output, while the validator focuses on whether the JSON parses successfully.
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