How to validate JSON online?

Paste your JSON code in the editor and the tool will validate it automatically. If there are errors, it will show you the exact line and column of the problem, along with an error description and suggestion to fix it.

What does "malformed JSON" mean?

Malformed JSON means the text does not follow proper JSON syntax. Common errors include: missing double quotes on keys, trailing commas after the last element, unclosed braces or brackets, and incorrectly formatted numeric values.

What is the difference between valid and invalid JSON?

JSON is valid when it strictly follows JSON syntax: keys must be in double quotes, strings in double quotes, arrays in brackets, and objects in braces. Invalid JSON has syntax errors that prevent correct parsing by any interpreter.

JSON Validator Online - Find errors in your code

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What is JSON?

JSON (JavaScript Object Notation) is a lightweight text format for storing and transmitting data. It's widely used in APIs, configuration files, and web applications.

Kubernetes: kubeconfig, resources in JSON format
Docker: docker config, orchestration files
REST APIs: Responses and requests in JSON
Config files: package.json, tsconfig.json

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What is JSON?

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