JProperty 2.0.2 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free Mac application was originally created by alexiuce. The software lies within Developer Tools, more precisely Webmaster Tools.
From the developer:
JProperty is a developer tool that can convert JSON to property. The application is simple and easy to use. The main window is split in two. The left panel showcases the content of the JSON files you imported, while the right panel will display the information converted to property.
You may want to check out more software for Mac, such as Url Extractor X, JustinmindPrototyper or 4W WebMerge, which might be related to JProperty.