not bad, but not perfect

It has a great potential, but it is not ideal when you need to work with big json (20-40Mb), it seems that the app does all the parsing work on the main thread, in my case when I do the http request, the app hangs for more than 10-20 mins at 100% cpu.
Fortunately in the latest version, there were some improvements on the json browser (it doesnt hang when you browse your BIG json tree), so once the app parses all the json, is becomes usable.

NOTE: Please add some multi threaded code and maybe also a progress when parsing, this would increase a lot the UX.

dany88a about Cocoa JSON Editor, v1.2.3