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Calciyums

JSON Formatter

Format, minify and validate JSON, and see where the error is when it's invalid.

Developer

Input

Calculated in your browser; what you enter is never sent to a server.

Result

Formatted JSON

{
  "name": "Calciyums",
  "tools": [
    1,
    2,
    3
  ],
  "free": true
}
Type
Object
Keys
3
Size
79 characters

How does it work?

Paste your JSON, choose an action and run it. Formatting adds readable indentation, minifying strips all unnecessary whitespace, and validating tells you whether the JSON is valid. Everything happens in your browser.

Example

{
  "name": "Calciyums",
  "tools": [
    1,
    2,
    3
  ],
  "free": true
}

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Frequently asked questions

Is my data sent to a server?

No. The JSON is processed in your browser and never leaves your device.

Why is my JSON invalid?

The usual culprits are trailing commas, single quotes, unquoted keys and missing brackets.