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JSON5 to JSON Converter

Convert JSON5 (extended JSON) to standard JSON format with full compatibility

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About This Tool

Convert JSON5 (extended JSON) to standard JSON format with full compatibility. Transform JSON5 features like comments, trailing commas, unquoted keys, and multi-line strings into valid standard JSON that any parser can handle.

Key Features

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Use Cases

json5 json converter format extended compatibility

Frequently Asked Questions

What JSON5 features are supported?

The tool supports all JSON5 features including unquoted keys, single-quoted strings, trailing commas, comments (single-line and multi-line), multi-line strings, hexadecimal numbers, and more.

Are comments removed in the output?

Yes, since standard JSON does not support comments, all single-line (//) and multi-line (/* */) comments are removed during conversion to produce valid JSON output.

Can I customize the output JSON format?

The output is standard indented JSON. You can copy the result to other formatting tools for further adjustment.

What is the difference between JSON5 and JSON?

JSON5 is a superset of JSON that adds comments, trailing commas, unquoted keys, multi-line strings, and more — making it easier for humans to write and read. Standard JSON is stricter but has broader compatibility with virtually all parsers.

Is my data safe when using this tool?

Absolutely. All conversion happens locally in your browser. No data is uploaded to any server, ensuring your information remains completely private and secure.