Jason is a free and open source JSON viewer and editor for Mac OS X users that can open local documents as well as download JSON data via HTTP.
Iin case of invalid data, an error message is presented and the line containing the error is highlighted.
What's New in This Release: [ read full changelog ]
New features:
· Object (dictionary) entries match the order of the original JSON data
· Rows can be reordered via drag and drop
· Parser is now based on SBJSON v3.1alpha3
· Keyboard shortcut to alternate between outline and text matches Xcode 4's