Is my JSON uploaded?
No. Formatting and validation run locally in your browser.
JSON Formatter and Validator
Format JSON with readable indentation, minify it for compact output, and catch syntax errors before using the data in an application or configuration file.
日本語版How to use this tool
How to use this tool
- Paste JSON into the input panel.
- Choose Pretty to format it or Minify to compact it.
- Review the output or validation error, then copy the result.
Frequently asked questions
What does minify do?
It removes unnecessary whitespace while preserving the JSON data.
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