This site was built to compliment the existing NetSuite Professionals Slack Community by adding a means for members to easily find answers to common questions and to create a searchable database of those questions and answers.

NetSuite Professionals

Where can I see a list of SuiteScript modules available (or not) in the browser console?

I'm not sure if that list exists but you can see in the help pages individually which modules are serverside only.  I am not sure what the use case would be to see an entire list at once.

Actually this page lists them all and their availability
<https://system.netsuite.com/app/help/helpcenter.nl?fid=chapter_4220488571.html>

Anything that does not say client will not be available in the console.