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Tools

JSON Validator

Paste JSON, validate the syntax, and format valid data into clean pretty JSON output.

Validate JSON

Useful for APIs, configs, payload checks, and readable formatting before you save or share JSON.

Supports objects, arrays, and primitive JSON values
Character limit: 120000. The validator checks syntax and formats valid JSON without changing the underlying values.
0 characters

Tip: the pretty formatter keeps the same JSON data but rewrites it into a more readable layout.

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