JSON Formatter & Validator

Real-time validation, formatting, and automatic TypeScript interface generation for JSON data

Upload File

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2 Spaces

Indent

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How to use

1. Select a file or paste your JSON into the text area.
2. The syntax is validated in real-time. If there are any errors, a message will be displayed.
3. Select the indent width (2 spaces, 4 spaces, or Tab) and click the "Format" button to format the JSON.
4. You can check the structure in a collapsible tree format in the "Tree View" tab.
5. In the "TypeScript Types" tab, you can view, copy, or download the automatically generated TypeScript interfaces.

Privacy First

🔒 All processing is done locally within your browser. Your data is never sent to any server.