JSON Local

Format, validate, minify, and visualize JSON instantly. With syntax highlighting and tree view.

PopularNo uploadFreeNo limits

InputJSON

Output

Input data stats appear here 🔒 Everything is processed on your device. Nothing is uploaded to our servers.

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Frequently asked

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data interchange format that is easy for humans to read and write, and easy for machines to parse and generate.

How do I use the JSON formatter?

Simply paste your JSON in the input field and it will be automatically formatted with syntax highlighting. You can choose the indent size, minify, or view the structure as a tree.

What types of errors does the validator detect?

It detects syntax errors such as missing commas, incorrect quotes, unclosed braces, and other formatting issues. It shows you exactly the line and column of the error.

Is it safe to paste sensitive data?

Yes, everything is processed in your browser. Your JSON is never sent to any external server.

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JSON Local

Frequently asked

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