JumpyEdit 1.0 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. The software is included in Games. This free Mac app was originally designed by Awesume Interactive. 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.
From the developer:
JumpyEdit helps you create your own game levels on your Mac by using advanced game techniques. You can start to edit your level on your Mac and then continue to work on your level with your iPhone and iPad. You can use advanced physics to create cool and innovative levels with your own personal touch. When ready, you can share your level with friends and family, with just one click, on social media, e-mail or Skype.
You may want to check out more software for Mac, such as Freaky Creatures, iDistract or JourneyMaker, which might be related to JumpyEdit.