What’s New

Version 1.8.1

• Fixed crash when editing the JSON document in the right-hand text editor (only certain cases)
• UI cleanup

Ratings and Reviews

3.5 out of 5
16 Ratings

16 Ratings

dopsonbr ,

Great Idea Needs Syntax highlighting

Good idea and has the potential to be pretty useful. Syntax highlighting is must. Without syntax highlighting its not worth using. I have spent years looking at JSON and XML files so by necccessity I became very profecient at reading those file types. However, it gets increasingly more difficult as those files grow in size. It is not uncommon to have to look through a 1000 line file and this is where your tool would provide me the most value. I would probably pay $10-20 per year if it supported some additional features: 1) Syntax highlighting 2) XML support 3) Handle curl/wget/httpie without me having to sanatize by supplying only the body 4) regex search support.

Derimagia ,

Solid Application, suggestion

The one suggestion I have that would make this more useful would be if you generated a launcher through a menu (Like any of the Jetbrain IDEs do, Sourcetree, etc) so that you can pipe json in and open it up. So you can make workflows that curl a json file, pipe it through jq to filter, and then pipe it into jayson to interact with it.

Slcc2c ,

Size limit?

I have a file with 5000 tweets stored as JSON objects, this program cannot open them. I get an error saying the file is not a JSON format because there is text after the closing ‘}’, I suspect the file stops processing in the middle of an object thus the error message.

Developer Response ,

You raised the question if there is a size limit. Short answer: No - not really.
Usually if Jayson reports a validation error the JSON file indeed not valid. Of course it is always possible that Jayson has a bug. Is it possible to send me the file in question? I would really appreciate getting my hands on this file so that I can fix a potential bug.


Christian Kienle
5 MB
Developer Tools

OS X 10.11 or later, 64-bit processor



Age Rating
Rated 4+
© Christian Kienle


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