Katalon studio-Open source

If katalon studio is open source?
where can i download the source code?


it is partly open source. You can find source code on github.

there is only provide install package
i want to secondary development ,so i need to know the Internal Core function
how katalon studio call katalon recorder to record
how run function works

I am afraid that most of core functionality is still not public. You can try to write email to Katalon Studio team with your request.

do you know their email address?