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JSON to Properties

Flatten nested JSON into escaped dotted key value pairs for properties files.

Convert JSON to properties

Keys written: — · Status: —
Conversion runs locally in your browser. Array items become indexed keys such as tags.0 and tags.1.

How to use the JSON to Properties

  1. Paste a JSON value into the input box.
  2. Press Convert to properties to flatten the structure.
  3. Copy the dotted key value pairs with the Copy result button.

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Frequently Asked Questions

Common questions about the free online json to properties.

Paste your JSON into the input box and press Convert to properties. The flattened key value pairs appear in the output box.
Each level of nesting adds a dot, so a name inside an owner object becomes the key owner.name on its own line.
Array items become indexed keys, so the first tag becomes tags.0 and the second one becomes tags.1 in the output.
Backslashes, spaces, equals signs, colons, hashes and exclamation marks in keys are escaped with a leading backslash.
Newlines, carriage returns and tabs inside a value are written as the two character escapes backslash n, r and t.
A null value produces a key with nothing after the equals sign, and an empty object or array does the same.
No. Dots are left as they are, because the properties reader uses them to rebuild the nested object structure.
No. The flattening happens entirely in your browser and your JSON never leaves your device.
Yes. Paste the properties output into the Properties to JSON tool to rebuild the nested object again.
Yes. It is completely free and unlimited, with no account and no sign up required.

Last updated: October 10, 2026