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Free check tool • Runs locally

JSON-LD Formatter & Minifier

Format, minify, or sort JSON-LD keys without changing facts or array order; find invalid JSON syntax before publishing.

🔒 Browser-local: pasted data and uploaded CSV files stay on this device. These tools do not submit your input to a server, create an account, or save your source code in a database. “Check this result” transfers output within the current browser tab and removes it after loading.

Format your JSON-LD

Ready. Nothing has been uploaded.

Output

Pretty-print, minify or sort JSON-LD

Paste JSON-LD and choose whether to add readable indentation, remove insignificant whitespace or sort object keys. When sorting is enabled, the keys @context, @type and @id appear first; other keys are alphabetical. Arrays keep their original order because changing array order may change the meaning of data. The tool parses strict JSON before writing anything, so a trailing comma, unescaped quote or malformed object produces a clear error instead of an incorrect download.

Example and limitations

For a compact object containing @type and name, pretty-printing adds line breaks while minification removes extra spaces. Neither operation creates or changes a Product price, rating or address. A formatted JSON-LD document is not necessarily valid Schema.org markup and is not automatically eligible for a Google rich result. The input limit is 1 million characters; large inputs should be split into smaller files.

Official references

Strict JSON syntax is defined by RFC 8259. For semantic checks use Schema Markup Validator and the site's browser-local checker.

We are here to help

Need help with a tool?

Found a bug, unexpected result, or problem downloading a corrected file? Contact our support team. We welcome clear reports and suggestions.

Have a suggestion for improving or changing any of our tools? Please don't hesitate to contact our support team. We'd be happy to hear from you. Thank you for your feedback!

Get Edge ExtensionMicrosoft Edge · Coming Soon
Get it fromMicrosoft StoreComing Soon for Windows

Schema Support Checker Edge extension and Windows app are coming soon.

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Imran Saeed
Developed by Imran Saeed

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