What are some good free or open source portfolio management programs? Want capability to import trades from CSV file and be able to see P&L etc. I'd prefer a stand-alone program rather than one that is also a trading platform, but I'm open to complete trading platforms if that is the best option.

For example, here's some I found:
https://code.google.com/archive/p/stock-portfolio-manager
https://jstock.sourceforge.net/

i was just lokking for the same thing i have downloaded js stock but havent used it

Random list I found on sourgeforce net

Quoting 

sourceforge.net/directory/business-enterprise/financial/investment/os:linuxfreshness%3Arecently-updated/freshness:recently-updated/

Most programs are for linux so the follwing list is the same

Quoting 

sourceforge.net/directory/business-enterprise/financial/investment/os:linux/freshness:recently-updated/

ps cant post links

hello,

R has a package called 'portfolio' that can be used to analyse and implement equity portfolios. R has also has functions for reading csv files.

If you're not familiar with the R language. It's open source, and there's a lot of resources available for learning it.

good luck