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ToolNest AI
Free

JSON Formatter

Format, validate, and beautify JSON data instantly.

data_objectPaste or type JSON here, or upload a .json file

About JSON Formatter

Paste raw or minified JSON and instantly get a beautifully formatted, syntax-highlighted, and validated output. Identify syntax errors, collapse nodes, and copy the cleaned result in one click.

Frequently Asked Questions

Yes, it validates the JSON structure and highlights syntax errors with the exact line and character position.

Yes, the tree view allows you to collapse and expand objects and arrays for easier navigation of large payloads.

No. All processing happens entirely in your browser. Your data is never sent to or stored on any server.

Yes, in addition to formatting, you can minify JSON to remove all whitespace for compact output.

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