JSON to Java properties Converter
Convert JSON into Java properties in your browser, with the structure preserved and parse errors explained in plain language.
Your result will appear here as soon as you add some input.
How to use it
- 1Paste your document into the input box, or type it directly.
- 2Adjust the options if you need something other than the defaults.
- 3The result updates as you type.
- 4Copy the result to your clipboard or download it as a file.
Example
Input
{"name":"Ada","languages":["analytical engine"],"active":true}Output
Valid Java properties with the same structure
About the JSON to Java properties Converter
JSON is the default interchange format of the web: every language parses it, it has exactly six types, and there is only one way to write a given document.
A .properties file is the Java ecosystem’s flat configuration format: dotted keys, one per line, loaded by Spring, Maven and the JDK itself.
The document is parsed into a common structure and written back out as Java properties, so the result is always syntactically correct even when the input was formatted unusually. Keys are flat strings; nesting exists only by convention in the dots. Both = and : separate a key from its value, and a backslash continues a line.
Questions people ask
Is your document uploaded to a server?
No. This tool runs entirely in your browser using standard web APIs, so your document never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.
Is it free, and do I need an account?
Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.