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Text & developer tools

JSON Formatter & Validator

Format, minify and validate JSON with readable syntax error messages.

Use the tool

This tool runs locally in your browser. Your text is not uploaded to a CPV Technologies server.

How to use JSON Formatter & Validator

Format, minify and validate JSON with readable syntax error messages. Enter or paste your content, choose the action you need, and copy the result. Check the result before using it in another application.

Frequently asked questions

Is this tool free?

Yes. This tool is free to use without mandatory registration.

Are my inputs uploaded?

No. This tool's text operations are performed locally in your browser; it does not send your input to a CPV Technologies server.

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Want a walkthrough?

Read the step-by-step guide to the JSON Formatter & Validator for examples, tips and answers to common questions, or browse all guides.