Hello.
Thanks for posting your question regarding how to view your website built using BoldGrid without BoldGrid installed. The only way to accomplish this is to make a backup of your website (after it’s no longer in the trial environment) and then removing the BoldGrid plugin. There shouldn’t be any lingering code left over. Also, in theory, the website should remain working/active even though you uninstall BoldGrid. However, it’s worth noting that you may not be able to modify all the aspects of the website without BoldGrid.
I hope this helps!
Sincerely,
Carlos D.